|- style=”height:2em”
|- style=”height:2em”
! rowspan=3 | 1
! rowspan=3 | 1
| rowspan=3 align=left | [[File:GeorgeRead.gif|100px]]<br/>”'[[George Read (American politician, born 1733)|George Read]]”’
| rowspan=3 align=left | [[File:GeorgeRead.gif|100px]]<br/>”'[[George Read (American politician, born 1733)|George Read]]”’
| rowspan=3 {{Party shading/Pro-Administration}} | [[Pro-Administration Party (United States)|Pro-<br/>Admin.]]
| rowspan=3 {{Party shading/Pro-Administration}} | [[Pro-Administration Party (United States)|Pro-<br/>Admin.]]
| rowspan=3 nowrap | Mar 4, 1789 –<br/>Sep 18, 1793
| rowspan=3 nowrap | Mar 4, 1789 –<br/>Sep 18, 1793
| rowspan=2 nowrap | Mar 4, 1789 –<br/>Mar 3, 1793
| rowspan=2 nowrap | Mar 4, 1789 –<br/>Mar 3, 1793
| {{Party shading/Anti-Administration}} | [[Anti-Administration party|Anti-<br/>Admin.]]
| {{Party shading/Anti-Administration}} | [[Anti-Administration party|Anti-<br/>Admin.]]
| rowspan=2 align=right | [[File:Richard bassett.jpg|100px]]<br/>”'[[Richard Bassett (Delaware politician)|Richard Bassett]]”’
| rowspan=2 align=right | [[File:Richard bassett.jpg|100px]]<br/>”'[[Richard Bassett (Delaware politician)|Richard Bassett]]”’
! rowspan=2 | 1
! rowspan=2 | 1
| rowspan=5 nowrap | Mar 4, 1793 –<br/>Jan 19, 1798
| rowspan=5 nowrap | Mar 4, 1793 –<br/>Jan 19, 1798
| rowspan=3 {{Party shading/Pro-Administration}} | [[Pro-Administration Party (United States)|Pro-Admin.]]
| rowspan=3 {{Party shading/Pro-Administration}} | [[Pro-Administration Party (United States)|Pro-Admin.]]
| rowspan=5 align=right | [[File:ViningJohnM 0001.jpg|100px]]<br/>”'[[John Vining]]”’
| rowspan=5 align=right | [[File:ViningJohnM 0001.jpg|100px]]<br/>”'[[John Vining]]”’
! rowspan=5 | 2
! rowspan=5 | 2
|- style=”height:2em”
|- style=”height:2em”
! rowspan=7 | 2
! rowspan=7 | 2
| rowspan=7 align=left | [[File:Henry Latimer US.gif|100px]]<br/>”'[[Henry Latimer (politician)|Henry Latimer]]”’
| rowspan=7 align=left | [[File:Henry Latimer US.gif|100px]]<br/>”'[[Henry Latimer (politician)|Henry Latimer]]”’
| {{Party shading/Pro-Administration}} | [[Pro-Administration Party (United States)|Pro-<br/>Admin.]]
| {{Party shading/Pro-Administration}} | [[Pro-Administration Party (United States)|Pro-<br/>Admin.]]
| rowspan=7 nowrap | Feb 7, 1795 –<br/>Feb 28, 1801
| rowspan=7 nowrap | Feb 7, 1795 –<br/>Feb 28, 1801
| nowrap | Jan 19, 1798 –<br/>Aug 11, 1798
| nowrap | Jan 19, 1798 –<br/>Aug 11, 1798
| {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| align=right | [[File:JoshuaClayton.gif|100px]]<br/>”'[[Joshua Clayton]]”’
| align=right | [[File:JoshuaClayton.gif|100px]]<br/>”'[[Joshua Clayton]]”’
! 3
! 3
| rowspan=5 nowrap | Jan 17, 1799 –<br/>Nov 6, 1804
| rowspan=5 nowrap | Jan 17, 1799 –<br/>Nov 6, 1804
| rowspan=5 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=5 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=5 align=right | [[File:William H. Wells.jpg|100px]]<br/>”'[[William H. Wells]]”’
| rowspan=5 align=right | [[File:William H. Wells.jpg|100px]]<br/>”'[[William H. Wells]]”’
! rowspan=5 | 4
! rowspan=5 | 4
|- style=”height:2em”
|- style=”height:2em”
! rowspan=8 | 3
! rowspan=8 | 3
| rowspan=8 align=left | [[File:Samuel White US.jpg|100px]]<br/>”'[[Samuel White (American politician)|Samuel White]]”’
| rowspan=8 align=left | [[File:Samuel White US.jpg|100px]]<br/>”'[[Samuel White (American politician)|Samuel White]]”’
| rowspan=8 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=8 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=8 nowrap | Feb 28, 1801 –<br/>Nov 4, 1809
| rowspan=8 nowrap | Feb 28, 1801 –<br/>Nov 4, 1809
| rowspan=7 nowrap | Nov 13, 1804 –<br/>Mar 3, 1813
| rowspan=7 nowrap | Nov 13, 1804 –<br/>Mar 3, 1813
| rowspan=7 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=7 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=7 align=right | [[File:BayardJames ASr.jpg|100px]]<br/>”'[[James A. Bayard (politician, born 1767)|James A. Bayard]]”’
| rowspan=7 align=right | [[File:BayardJames ASr.jpg|100px]]<br/>”'[[James A. Bayard (politician, born 1767)|James A. Bayard]]”’
! rowspan=7 | 5
! rowspan=7 | 5
|- style=”height:2em”
|- style=”height:2em”
! rowspan=7 | 4
! rowspan=7 | 4
| rowspan=7 align=left | ”'[[Outerbridge Horsey]]”’
| rowspan=7 align=left | ”'[[Outerbridge Horsey]]”’
| rowspan=7 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=7 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=7 nowrap | Jan 12, 1810 –<br/>Mar 3, 1821
| rowspan=7 nowrap | Jan 12, 1810 –<br/>Mar 3, 1821
| rowspan=2 nowrap | May 21, 1813 –<br/>Mar 3, 1817
| rowspan=2 nowrap | May 21, 1813 –<br/>Mar 3, 1817
| rowspan=2 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=2 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=2 align=right | [[File:William H. Wells.jpg|100px]]<br/>”'[[William H. Wells]]”’
| rowspan=2 align=right | [[File:William H. Wells.jpg|100px]]<br/>”'[[William H. Wells]]”’
! rowspan=2 | 6
! rowspan=2 | 6
| rowspan=5 nowrap | Mar 4, 1817 –<br/>Mar 3, 1823
| rowspan=5 nowrap | Mar 4, 1817 –<br/>Mar 3, 1823
| rowspan=5 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=5 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=5 align=right | [[File:Vandykenjr.jpg|100px]]<br/>”'[[Nicholas Van Dyke (politician, born 1769)|Nicholas Van Dyke]]”’
| rowspan=5 align=right | [[File:Vandykenjr.jpg|100px]]<br/>”'[[Nicholas Van Dyke (politician, born 1769)|Nicholas Van Dyke]]”’
! rowspan=9 | 7
! rowspan=9 | 7
|- style=”height:2em”
|- style=”height:2em”
! 5
! 5
| align=left | [[File:Rodneycaesara3.jpg|100px]]<br/>”'[[Caesar Augustus Rodney|Caesar A. Rodney]]”’
| align=left | [[File:Rodneycaesara3.jpg|100px]]<br/>”'[[Caesar Augustus Rodney|Caesar A. Rodney]]”’
| {{Party shading/Democratic-Republican}} | [[Democratic-Republican Party|Democratic-<br/>Republican]]
| {{Party shading/Democratic-Republican}} | [[Democratic-Republican Party|Democratic-<br/>Republican]]
| nowrap | Jan 24, 1822 –<br/>Jan 29, 1823
| nowrap | Jan 24, 1822 –<br/>Jan 29, 1823
| rowspan=3 nowrap | Jan 8, 1824 –<br/>May 21, 1826
| rowspan=3 nowrap | Jan 8, 1824 –<br/>May 21, 1826
| rowspan=2 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=2 {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=3 align=right | [[File:Vandykenjr.jpg|100px]]<br/>”'[[Nicholas Van Dyke (politician, born 1769)|Nicholas Van Dyke]]”’
| rowspan=3 align=right | [[File:Vandykenjr.jpg|100px]]<br/>”'[[Nicholas Van Dyke (politician, born 1769)|Nicholas Van Dyke]]”’
|- style=”height:2em”
|- style=”height:2em”
! rowspan=5 | 6
! rowspan=5 | 6
| rowspan=5 align=left | [[File:Thomas Clayton US.jpg|100px]]<br/>”'[[Thomas Clayton]]”’
| rowspan=5 align=left | [[File:Thomas Clayton US.jpg|100px]]<br/>”'[[Thomas Clayton]]”’
| {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| {{Party shading/Federalist}} | [[Federalist Party|Federalist]]
| rowspan=5 nowrap | Jan 8, 1824 –<br/>Mar 3, 1827
| rowspan=5 nowrap | Jan 8, 1824 –<br/>Mar 3, 1827
| nowrap | Nov 8, 1826 –<br/>Jan 12, 1827
| nowrap | Nov 8, 1826 –<br/>Jan 12, 1827
| {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| align=right | [[File:Daniel Rodney.jpg|100px]]<br/>”'[[Daniel Rodney]]”’
| align=right | [[File:Daniel Rodney.jpg|100px]]<br/>”'[[Daniel Rodney]]”’
! 8
! 8
| rowspan=2 nowrap | Jan 12, 1827 –<br/>Mar 3, 1829
| rowspan=2 nowrap | Jan 12, 1827 –<br/>Mar 3, 1829
| rowspan=2 {{Party shading/Jacksonian}} | [[Jacksonian Party (United States)|Jacksonian]]
| rowspan=2 {{Party shading/Jacksonian}} | [[Jacksonian Party (United States)|Jacksonian]]
| rowspan=2 align=right | [[File:Ridgelyhm.jpg|100px]]<br/>”'[[Henry M. Ridgely]]”’
| rowspan=2 align=right | [[File:Ridgelyhm.jpg|100px]]<br/>”'[[Henry M. Ridgely]]”’
! rowspan=2 | 9
! rowspan=2 | 9
|- style=”height:2em”
|- style=”height:2em”
! rowspan=2 | 7
! rowspan=2 | 7
| rowspan=2 align=left | [[File:LMcLane.jpg|100px]]<br/>”'[[Louis McLane]]”’
| rowspan=2 align=left | [[File:LMcLane.jpg|100px]]<br/>”'[[Louis McLane]]”’
| rowspan=2 {{Party shading/Jacksonian}} | [[Jacksonian Party (United States)|Jacksonian]]
| rowspan=2 {{Party shading/Jacksonian}} | [[Jacksonian Party (United States)|Jacksonian]]
| rowspan=2 nowrap | Mar 4, 1827 –<br/>Apr 16, 1829
| rowspan=2 nowrap | Mar 4, 1827 –<br/>Apr 16, 1829
| rowspan=7 nowrap | Mar 4, 1829 –<br/>Dec 29, 1836
| rowspan=7 nowrap | Mar 4, 1829 –<br/>Dec 29, 1836
| rowspan=7 {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=7 {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=7 align=right | [[File:JMiddletonClayton-SecofState.jpg|100px]]<br/>”'[[John M. Clayton]]”’
| rowspan=7 align=right | [[File:JMiddletonClayton-SecofState.jpg|100px]]<br/>”'[[John M. Clayton]]”’
! rowspan=7 | 10
! rowspan=7 | 10
|- style=”height:2em”
|- style=”height:2em”
! rowspan=4 | 8
! rowspan=4 | 8
| rowspan=4 align=left | [[File:Arnold Naudain.jpg|100px]]<br/>”'[[Arnold Naudain]]”’
| rowspan=4 align=left | [[File:Arnold Naudain.jpg|100px]]<br/>”'[[Arnold Naudain]]”’
| rowspan=4 {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=4 {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=4 nowrap | Jan 7, 1830 –<br/>Jun 16, 1836
| rowspan=4 nowrap | Jan 7, 1830 –<br/>Jun 16, 1836
|- style=”height:2em”
|- style=”height:2em”
! rowspan=9 | 9
! rowspan=9 | 9
| rowspan=5 align=left | [[File:Richard H Bayard US.jpg|100px]]<br/>”'[[Richard H. Bayard]]”’
| rowspan=5 align=left | [[File:Richard H Bayard US.jpg|100px]]<br/>”'[[Richard H. Bayard]]”’
| rowspan=3 {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=3 {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=5 nowrap | Jun 17, 1836 –<br/>Sep 19, 1839
| rowspan=5 nowrap | Jun 17, 1836 –<br/>Sep 19, 1839
| rowspan=8 nowrap | Jan 9, 1837 –<br/>Mar 3, 1847
| rowspan=8 nowrap | Jan 9, 1837 –<br/>Mar 3, 1847
| {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| {{Party shading/National Republican}} | [[National Republican Party|National<br/>Republican]]
| rowspan=8 align=right | [[File:Thomas Clayton US.jpg|100px]]<br/>”'[[Thomas Clayton]]”’
| rowspan=8 align=right | [[File:Thomas Clayton US.jpg|100px]]<br/>”'[[Thomas Clayton]]”’
! rowspan=8 | 11
! rowspan=8 | 11
|- style=”height:2em”
|- style=”height:2em”
| rowspan=3 align=left | [[File:Richard H Bayard US.jpg|100px]]<br/>”'[[Richard H. Bayard]]”’
| rowspan=3 align=left | [[File:Richard H Bayard US.jpg|100px]]<br/>”'[[Richard H. Bayard]]”’
| rowspan=3 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=3 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=3 nowrap | Jan 12, 1841 –<br/>Mar 3, 1845
| rowspan=3 nowrap | Jan 12, 1841 –<br/>Mar 3, 1845
|- style=”height:2em”
|- style=”height:2em”
! rowspan=2 | 10
! rowspan=2 | 10
| rowspan=2 align=left | [[File:JMiddletonClayton-SecofState.jpg|100px]]<br/>”'[[John M. Clayton]]”’
| rowspan=2 align=left | [[File:JMiddletonClayton-SecofState.jpg|100px]]<br/>”'[[John M. Clayton]]”’
| rowspan=2 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=2 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=2 nowrap | Mar 4, 1845 –<br/>Feb 23, 1849
| rowspan=2 nowrap | Mar 4, 1845 –<br/>Feb 23, 1849
| rowspan=4 nowrap | Mar 4, 1847 –<br/>Mar 3, 1853
| rowspan=4 nowrap | Mar 4, 1847 –<br/>Mar 3, 1853
| rowspan=4 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=4 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=4 align=right | [[File:SpruancePresley.jpg|100px]]<br/>”'[[Presley Spruance]]”’
| rowspan=4 align=right | [[File:SpruancePresley.jpg|100px]]<br/>”'[[Presley Spruance]]”’
! rowspan=4 | 12
! rowspan=4 | 12
|- style=”height:2em”
|- style=”height:2em”
! rowspan=2 | 11
! rowspan=2 | 11
| rowspan=2 align=left | [[File:Senator John Wales.jpg|100px]]<br/>”'[[John Wales]]”’
| rowspan=2 align=left | [[File:Senator John Wales.jpg|100px]]<br/>”'[[John Wales]]”’
| rowspan=2 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=2 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=2 nowrap | Feb 23, 1849 –<br/>Mar 3, 1851
| rowspan=2 nowrap | Feb 23, 1849 –<br/>Mar 3, 1851
|- style=”height:2em”
|- style=”height:2em”
! rowspan=10 | 12
! rowspan=10 | 12
| rowspan=10 align=left | [[File:James A. Bayard, Jr. – Brady-Handy.jpg|100px]]<br/>”'[[James A. Bayard Jr.]]”’
| rowspan=10 align=left | [[File:James A. Bayard, Jr. – Brady-Handy.jpg|100px]]<br/>”'[[James A. Bayard Jr.]]”’
| rowspan=10 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=10 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=10 nowrap | Mar 4, 1851 –<br/>Jan 29, 1864
| rowspan=10 nowrap | Mar 4, 1851 –<br/>Jan 29, 1864
| rowspan=2 nowrap | Mar 4, 1853 –<br/>Nov 9, 1856
| rowspan=2 nowrap | Mar 4, 1853 –<br/>Nov 9, 1856
| rowspan=2 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=2 {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| rowspan=2 align=right | [[File:JMiddletonClayton-SecofState.jpg|100px]]<br/>”'[[John M. Clayton]]”’
| rowspan=2 align=right | [[File:JMiddletonClayton-SecofState.jpg|100px]]<br/>”'[[John M. Clayton]]”’
! rowspan=2 | 13
! rowspan=2 | 13
| nowrap | Nov 19, 1856 –<br/>Jan 14, 1857
| nowrap | Nov 19, 1856 –<br/>Jan 14, 1857
| {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| {{Party shading/Whig}} | [[Whig Party (United States)|Whig]]
| align=right | [[File:ComegysJosephP.jpg|100px]]<br/>”'[[Joseph P. Comegys]]”’
| align=right | [[File:ComegysJosephP.jpg|100px]]<br/>”'[[Joseph P. Comegys]]”’
! 14
! 14
| rowspan=2 nowrap | Jan 14, 1857 –<br/>Mar 3, 1859
| rowspan=2 nowrap | Jan 14, 1857 –<br/>Mar 3, 1859
| rowspan=2 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=2 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=2 align=right | [[File:BatesMartinW.jpg|100px]]<br/>”'[[Martin W. Bates]]”’
| rowspan=2 align=right | [[File:BatesMartinW.jpg|100px]]<br/>”'[[Martin W. Bates]]”’
! rowspan=2 | 15
! rowspan=2 | 15
| rowspan=9 nowrap | Mar 4, 1859 –<br/>Mar 3, 1871
| rowspan=9 nowrap | Mar 4, 1859 –<br/>Mar 3, 1871
| rowspan=9 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=9 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=9 align=right | [[File:Willard Saulsbury, Sr. – Brady-Handy.jpg|100px]]<br/>”'[[Willard Saulsbury Sr.]]”’
| rowspan=9 align=right | [[File:Willard Saulsbury, Sr. – Brady-Handy.jpg|100px]]<br/>”'[[Willard Saulsbury Sr.]]”’
! rowspan=9 | 16
! rowspan=9 | 16
|- style=”height:2em”
|- style=”height:2em”
! rowspan=3 | 13
! rowspan=3 | 13
| rowspan=3 align=left | [[File:George R. Riddle – Brady-Handy.jpg|100px]]<br/>”'[[George R. Riddle]]”’
| rowspan=3 align=left | [[File:George R. Riddle – Brady-Handy.jpg|100px]]<br/>”'[[George R. Riddle]]”’
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 nowrap | Jan 29, 1864 –<br/>Mar 28, 1867
| rowspan=3 nowrap | Jan 29, 1864 –<br/>Mar 28, 1867
|- style=”height:2em”
|- style=”height:2em”
! 14
! 14
| align=left | [[File:James A. Bayard, Jr. – Brady-Handy.jpg|100px]]<br/>”'[[James A. Bayard Jr.]]”’
| align=left | [[File:James A. Bayard, Jr. – Brady-Handy.jpg|100px]]<br/>”'[[James A. Bayard Jr.]]”’
| {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| nowrap | Apr 5, 1867 –<br/>Mar 3, 1869
| nowrap | Apr 5, 1867 –<br/>Mar 3, 1869
|- style=”height:2em”
|- style=”height:2em”
! rowspan=9 | 15
! rowspan=9 | 15
| rowspan=9 align=left | [[File:Thomas F. Bayard, Brady-Handy photo portrait, circa 1870-1880.jpg|100px]]<br/>”'[[Thomas F. Bayard]]”’
| rowspan=9 align=left | [[File:Thomas F. Bayard, Brady-Handy photo portrait, circa 1870-1880.jpg|100px]]<br/>”'[[Thomas F. Bayard]]”’
| rowspan=9 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=9 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=9 nowrap | Mar 4, 1869 –<br/>Mar 6, 1885
| rowspan=9 nowrap | Mar 4, 1869 –<br/>Mar 6, 1885
| rowspan=11 nowrap | Mar 4, 1871 –<br/>Mar 3, 1889
| rowspan=11 nowrap | Mar 4, 1871 –<br/>Mar 3, 1889
| rowspan=11 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=11 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=11 align=right | [[File:Eli M. Saulsbury – Brady-Handy.jpg|100px]]<br/>”'[[Eli Saulsbury]]”’
| rowspan=11 align=right | [[File:Eli M. Saulsbury – Brady-Handy.jpg|100px]]<br/>”'[[Eli Saulsbury]]”’
! rowspan=11 | 17
! rowspan=11 | 17
|- style=”height:2em”
|- style=”height:2em”
! rowspan=8 | 16
! rowspan=8 | 16
| rowspan=8 align=left | [[File:George Gray;G000396.jpg|100px]]<br/>”'[[George Gray (Delaware politician)|George Gray]]”’
| rowspan=8 align=left | [[File:George Gray;G000396.jpg|100px]]<br/>”'[[George Gray (Delaware politician)|George Gray]]”’
| rowspan=8 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=8 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=8 nowrap | Mar 18, 1885 –<br/>Mar 3, 1899
| rowspan=8 nowrap | Mar 18, 1885 –<br/>Mar 3, 1899
| rowspan=3 nowrap | Mar 4, 1889 –<br/>Mar 3, 1895
| rowspan=3 nowrap | Mar 4, 1889 –<br/>Mar 3, 1895
| rowspan=3 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=3 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=3 align=right | [[File:HigginsAnthony.jpg|100px]]<br/>”'[[Anthony Higgins (politician)|Anthony Higgins]]”’
| rowspan=3 align=right | [[File:HigginsAnthony.jpg|100px]]<br/>”'[[Anthony Higgins (politician)|Anthony Higgins]]”’
! rowspan=3 | 18
! rowspan=3 | 18
| rowspan=3 nowrap | Jan 19, 1897 –<br/>Mar 3, 1901
| rowspan=3 nowrap | Jan 19, 1897 –<br/>Mar 3, 1901
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 align=right | [[File:Richard Rolland Kenney.jpg|100px]]<br/>”'[[Richard R. Kenney]]”’
| rowspan=3 align=right | [[File:Richard Rolland Kenney.jpg|100px]]<br/>”'[[Richard R. Kenney]]”’
! rowspan=3 | 19
! rowspan=3 | 19
|- style=”height:2em”
|- style=”height:2em”
! rowspan=2 | 17
! rowspan=2 | 17
| rowspan=2 align=left | [[File:BALL, L. HEISLER. SENATOR LCCN2016860488 (resized).jpg|100px]]<br/>”'[[L. Heisler Ball]]”’
| rowspan=2 align=left | [[File:BALL, L. HEISLER. SENATOR LCCN2016860488 (resized).jpg|100px]]<br/>”'[[L. Heisler Ball]]”’
| rowspan=2 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=2 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=2 nowrap | Mar 2, 1903 –<br/>Mar 3, 1905
| rowspan=2 nowrap | Mar 2, 1903 –<br/>Mar 3, 1905
| rowspan=4 nowrap | Mar 2, 1903 –<br/>Mar 3, 1907
| rowspan=4 nowrap | Mar 2, 1903 –<br/>Mar 3, 1907
| rowspan=4 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=4 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=4 align=right | [[File:James Allee.jpg|100px]]<br/>”'[[J. Frank Allee]]”’
| rowspan=4 align=right | [[File:James Allee.jpg|100px]]<br/>”'[[J. Frank Allee]]”’
! rowspan=4 | 20
! rowspan=4 | 20
|- style=”height:2em”
|- style=”height:2em”
! rowspan=6 | 18
! rowspan=6 | 18
| rowspan=6 align=left | [[File:Henry A Dupont.jpg|100px]]<br/>”'[[Henry A. du Pont]]”’
| rowspan=6 align=left | [[File:Henry A Dupont.jpg|100px]]<br/>”'[[Henry A. du Pont]]”’
| rowspan=6 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=6 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=6 nowrap | Jun 13, 1906 –<br/>Mar 3, 1917
| rowspan=6 nowrap | Jun 13, 1906 –<br/>Mar 3, 1917
| rowspan=3 nowrap | Mar 4, 1907 –<br/>Mar 3, 1913
| rowspan=3 nowrap | Mar 4, 1907 –<br/>Mar 3, 1913
| rowspan=3 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=3 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=3 align=right | [[File:RichardsonHarryA.jpg|100px]]<br/>”'[[Harry A. Richardson]]”’
| rowspan=3 align=right | [[File:RichardsonHarryA.jpg|100px]]<br/>”'[[Harry A. Richardson]]”’
! rowspan=3 | 21
! rowspan=3 | 21
| rowspan=3 nowrap | Mar 4, 1913 –<br/>Mar 3, 1919
| rowspan=3 nowrap | Mar 4, 1913 –<br/>Mar 3, 1919
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 align=right | [[File:SAULSBURY, WILLARD. SENATOR LCCN2016858437 (resized).jpg|100px]]<br/>”'[[Willard Saulsbury Jr.]]”’
| rowspan=3 align=right | [[File:SAULSBURY, WILLARD. SENATOR LCCN2016858437 (resized).jpg|100px]]<br/>”'[[Willard Saulsbury Jr.]]”’
! rowspan=3 | 22
! rowspan=3 | 22
|- style=”height:2em”
|- style=”height:2em”
! rowspan=3 | 19
! rowspan=3 | 19
| rowspan=3 align=left | [[File:Josiah Oliver Wolcott.jpg|100px]]<br/>”'[[Josiah O. Wolcott]]”’
| rowspan=3 align=left | [[File:Josiah Oliver Wolcott.jpg|100px]]<br/>”'[[Josiah O. Wolcott]]”’
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 nowrap | Mar 4, 1917 –<br/>Jul 2, 1921
| rowspan=3 nowrap | Mar 4, 1917 –<br/>Jul 2, 1921
| rowspan=5 nowrap | Mar 4, 1919 –<br/>Mar 3, 1925
| rowspan=5 nowrap | Mar 4, 1919 –<br/>Mar 3, 1925
| rowspan=5 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=5 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=5 align=right | [[File:BALL, L.H. SENATOR LCCN2016860489 (resized).jpg|100px]]<br/>”'[[L. Heisler Ball]]”’
| rowspan=5 align=right | [[File:BALL, L.H. SENATOR LCCN2016860489 (resized).jpg|100px]]<br/>”'[[L. Heisler Ball]]”’
! rowspan=5 | 23
! rowspan=5 | 23
|- style=”height:2em”
|- style=”height:2em”
! 20
! 20
| align=left | [[File:Thomas Coleman du Pont 1902.jpg|100px]]<br/>”'[[T. Coleman du Pont]]”’
| align=left | [[File:Thomas Coleman du Pont 1902.jpg|100px]]<br/>”'[[T. Coleman du Pont]]”’
| {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| nowrap | Jul 7, 1921 –<br/>Nov 6, 1922
| nowrap | Jul 7, 1921 –<br/>Nov 6, 1922
|- style=”height:2em”
|- style=”height:2em”
! rowspan=6 | 21
! rowspan=6 | 21
| rowspan=6 align=left | [[File:BAYARD, THOMAS F. SENATOR LCCN2016861393 (cropped).jpg|100px]]<br/>”'[[Thomas F. Bayard Jr.]]”’
| rowspan=6 align=left | [[File:BAYARD, THOMAS F. SENATOR LCCN2016861393 (cropped).jpg|100px]]<br/>”'[[Thomas F. Bayard Jr.]]”’
| rowspan=6 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=6 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=6 nowrap | Nov 7, 1922 –<br/>Mar 3, 1929
| rowspan=6 nowrap | Nov 7, 1922 –<br/>Mar 3, 1929
| rowspan=2 nowrap | Mar 4, 1925 –<br/>Dec 8, 1928
| rowspan=2 nowrap | Mar 4, 1925 –<br/>Dec 8, 1928
| rowspan=2 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=2 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=2 align=right | [[File:Thomas Coleman du Pont 1902.jpg|100px]]<br/>”'[[T. Coleman du Pont]]”’
| rowspan=2 align=right | [[File:Thomas Coleman du Pont 1902.jpg|100px]]<br/>”'[[T. Coleman du Pont]]”’
! rowspan=2 | 24
! rowspan=2 | 24
| rowspan=5 nowrap | Dec 10, 1928 –<br/>Jan 3, 1937
| rowspan=5 nowrap | Dec 10, 1928 –<br/>Jan 3, 1937
| rowspan=5 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=5 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=5 align=right | [[File:HastingsDanielO.jpg|100px]]<br/>”'[[Daniel O. Hastings]]”’
| rowspan=5 align=right | [[File:HastingsDanielO.jpg|100px]]<br/>”'[[Daniel O. Hastings]]”’
! rowspan=5 | 25
! rowspan=5 | 25
|- style=”height:2em”
|- style=”height:2em”
! rowspan=6 | 22
! rowspan=6 | 22
| rowspan=6 align=left | [[File:John G. Townsend, Jr.jpg|100px]]<br/>”'[[John G. Townsend Jr.]]”’
| rowspan=6 align=left | [[File:John G. Townsend, Jr.jpg|100px]]<br/>”'[[John G. Townsend Jr.]]”’
| rowspan=6 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=6 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=6 nowrap | Mar 4, 1929 –<br/>Jan 3, 1941
| rowspan=6 nowrap | Mar 4, 1929 –<br/>Jan 3, 1941
| rowspan=3 nowrap | Jan 3, 1937 –<br/>Jan 3, 1943
| rowspan=3 nowrap | Jan 3, 1937 –<br/>Jan 3, 1943
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 align=right | [[File:HughesJamesH.jpg|100px]]<br/>”'[[James H. Hughes]]”’
| rowspan=3 align=right | [[File:HughesJamesH.jpg|100px]]<br/>”'[[James H. Hughes]]”’
! rowspan=3 | 26
! rowspan=3 | 26
|- style=”height:2em”
|- style=”height:2em”
! rowspan=3 | 23
! rowspan=3 | 23
| rowspan=3 align=left | [[File:Jamestunnell.jpg|100px]]<br/>”'[[James M. Tunnell]]”’
| rowspan=3 align=left | [[File:Jamestunnell.jpg|100px]]<br/>”'[[James M. Tunnell]]”’
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 nowrap | Jan 3, 1941 –<br/>Jan 3, 1947
| rowspan=3 nowrap | Jan 3, 1941 –<br/>Jan 3, 1947
| nowrap rowspan=3 | Jan 3, 1943 –<br/>Jan 3, 1949
| nowrap rowspan=3 | Jan 3, 1943 –<br/>Jan 3, 1949
| rowspan=3 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=3 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=3 align=right | [[File:C. Douglass Buck.jpg|100px]]<br/>”'[[C. Douglass Buck]]”’
| rowspan=3 align=right | [[File:C. Douglass Buck.jpg|100px]]<br/>”'[[C. Douglass Buck]]”’
! rowspan=3 | 27
! rowspan=3 | 27
|- style=”height:2em”
|- style=”height:2em”
! rowspan=12 | 24
! rowspan=12 | 24
| rowspan=12 align=left | [[File:JohnJWilliams.jpg|100px]]<br/>”'[[John J. Williams (politician)|John J. Williams]]”’
| rowspan=12 align=left | [[File:JohnJWilliams.jpg|100px]]<br/>”'[[John J. Williams (politician)|John J. Williams]]”’
| rowspan=12 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=12 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=12 nowrap | Jan 3, 1947 –<br/>Dec 31, 1970
| rowspan=12 nowrap | Jan 3, 1947 –<br/>Dec 31, 1970
| rowspan=6 nowrap | Jan 3, 1949 –<br/>Jan 3, 1961
| rowspan=6 nowrap | Jan 3, 1949 –<br/>Jan 3, 1961
| rowspan=6 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=6 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=6 align=right | [[File:JAllenFrear.jpg|100px]]<br/>”'[[J. Allen Frear Jr.]]”’
| rowspan=6 align=right | [[File:JAllenFrear.jpg|100px]]<br/>”'[[J. Allen Frear Jr.]]”’
! rowspan=6 | 28
! rowspan=6 | 28
| rowspan=7 nowrap | Jan 3, 1961 –<br/>Jan 3, 1973
| rowspan=7 nowrap | Jan 3, 1961 –<br/>Jan 3, 1973
| rowspan=7 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=7 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=7 align=right | [[File:BoggsCaleb.jpg|100px]]<br/>”'[[J. Caleb Boggs]]”’
| rowspan=7 align=right | [[File:BoggsCaleb.jpg|100px]]<br/>”'[[J. Caleb Boggs]]”’
! rowspan=7 | 29
! rowspan=7 | 29
|- style=”height:2em”
|- style=”height:2em”
! rowspan=16 | 25
! rowspan=16 | 25
| rowspan=16 align=left | [[File:Sen. William V. Roth (R-DE).jpg|100px]]<br/>”'[[William Roth]]”’
| rowspan=16 align=left | [[File:Sen. William V. Roth (R-DE).jpg|100px]]<br/>”'[[William Roth]]”’
| rowspan=16 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=16 {{Party shading/Republican}} | [[Republican Party (United States)|Republican]]
| rowspan=16 nowrap | Jan 1, 1971 –<br/>Jan 3, 2001
| rowspan=16 nowrap | Jan 1, 1971 –<br/>Jan 3, 2001
| rowspan=19 nowrap | Jan 3, 1973 –<br/>Jan 15, 2009
| rowspan=19 nowrap | Jan 3, 1973 –<br/>Jan 15, 2009
| rowspan=19 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=19 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=19 align=right | [[File:Joe Biden, official photo.jpg|100px]]<br/>”'[[Joe Biden]]”’
| rowspan=19 align=right | [[File:Joe Biden, official photo.jpg|100px]]<br/>”'[[Joe Biden]]”’
! rowspan=19 | 30
! rowspan=19 | 30
|- style=”height:2em”
|- style=”height:2em”
! rowspan=14 | 26
! rowspan=14 | 26
| rowspan=14 align=left | [[File:Tom Carper, official portrait, 112th Congress.jpg|100px]]<br/>”'[[Tom Carper]]”’
| rowspan=14 align=left | [[File:Tom Carper, official portrait, 112th Congress.jpg|100px]]<br/>”'[[Tom Carper]]”’
| rowspan=14 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=14 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=14 nowrap | Jan 3, 2001 –<br/>Jan 3, 2025
| rowspan=14 nowrap | Jan 3, 2001 –<br/>Jan 3, 2025
| nowrap|Jan 15, 2009<ref name=chronolist>{{cite web |url=https://www.senate.gov/artandhistory/history/resources/pdf/chronlist.pdf |title=Senators of the United States 1789–present, A chronological list of senators since the First Congress in 1789 |publisher=[[Historian of the United States Senate|Senate Historical Office]] |date=April 17, 2015 |access-date=March 25, 2017}}</ref> –<br/>Nov 15, 2010
| nowrap|Jan 15, 2009<ref name=chronolist>{{cite web |url=https://www.senate.gov/artandhistory/history/resources/pdf/chronlist.pdf |title=Senators of the United States 1789–present, A chronological list of senators since the First Congress in 1789 |publisher=[[Historian of the United States Senate|Senate Historical Office]] |date=April 17, 2015 |access-date=March 25, 2017}}</ref> –<br/>Nov 15, 2010
| {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| align=right | [[File:Ted Kaufman, official Senate photo portrait, 2009.jpg|100px]]<br/>”'[[Ted Kaufman]]”’
| align=right | [[File:Ted Kaufman, official Senate photo portrait, 2009.jpg|100px]]<br/>”'[[Ted Kaufman]]”’
! 31
! 31
| rowspan=9 nowrap | Nov 15, 2010 –<br/>present
| rowspan=9 nowrap | Nov 15, 2010 –<br/>present
| rowspan=9 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=9 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=9 align=right | [[File:Chris Coons, official portrait, 112th Congress.jpg|100px]]<br/>”'[[Chris Coons]]”’
| rowspan=9 align=right | [[File:Chris Coons, official portrait, 112th Congress.jpg|100px]]<br/>”'[[Chris Coons]]”’
! rowspan=9 | 32
! rowspan=9 | 32
|- style=”height:2em”
|- style=”height:2em”
! rowspan=3 | 27
! rowspan=3 | 27
| rowspan=3 align=left | [[File:Senator Blunt Rochester Official Portrait.jpg|100px]]<br/>”'[[Lisa Blunt Rochester]]”’
| rowspan=3 align=left | [[File:Senator Blunt Rochester Official Portrait.jpg|100px]]<br/>”'[[Lisa Blunt Rochester]]”’
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 {{Party shading/Democratic}} | [[Democratic Party (United States)|Democratic]]
| rowspan=3 | Jan 3, 2025 –<br/>present
| rowspan=3 | Jan 3, 2025 –<br/>present
