1738 - 1790 (52 years)
| William Nicoll Clarkson | |
| B: | 16 Jun 1795 |
| Bridgeton, New Jersey, USA | |
| D: | 26 Sep 1851 |
| , Charleston, Charleston, South Carolina, USA | |
| Samuel Floyd Clarkson | |
| B: | 29 May 1797 |
| New York, New York, New York | |
| D: | 31 Dec 1868 |
| New York City, New York, United States | |
| Hannah Floyd Clarkson | |
| B: | 31 Jan 1793 |
| Philadelphia, Pennsylvania, United States | |
| D: | 31 Jul 1870 |
| Poughkeepsie, Dutchess, New York, United States | |
| Harriet Ashton Clarkson | |
| B: | 23 Sep 1786 |
| Philadelphia, Philadelphia, Pennsylvania, United States | |
| D: | 13 Dec 1859 |
| New York City, New York, United States | |
| Rev. William Clarkson, MD | |
| B: | 7 Nov 1763 |
| Philadelphia, Philadelphia, Pennsylvania, British Colonial America | |
| D: | 9 Sep 1812 |
| St.John's Island, South Carolina | |
| Catherine Floyd | |
| B: | 24 Apr 1767 |
| Mastic, Brookhaven, Suffolk, NY | |
| M: | 2 Aug 1785 |
| Mastic, Suffolk, New York, United States | |
| D: | 7 Aug 1832 |
| Manhattan, New York, New York, United States | |
| Dr. Gerardus Clarkson, M.D. | |
| B: | 1738 |
| New York City, New York County, New York Colony, British Colonial America | |
| D: | 19 Sep 1790 |
| Philadelphia, Philadelphia, Pennsylvania, British Colonial America | |
| Mary Flower | |
| B: | Jul 1743 |
| Philadelphia, Philadelphia, Pennsylvania, British Colonial America | |
| D: | 18 Jan 1795 |
| New York County, New York, United States | |
