 MaleRev. William Clarkson, MD |
| Birth | 7 Nov 1763 | Philadelphia, Philadelphia, Pennsylvania, British Colonial America  |
| Christening | 18 Apr 1765 | Philadelphia, Philadelphia, Pennsylvania |
| Death | 9 Sep 1812 | St.John's Island, South Carolina |
| Burial | Johns Island, Charleston, South Carolina, United States |
|
| Marriage | 2 Aug 1785 | Mastic, Suffolk, New York, United States |
| Father | ||
| Mother | Mary Flower | F42217 Group Sheet | |
 FemaleCatherine Floyd |
| Birth | 24 Apr 1767 | Mastic, Brookhaven, Suffolk, NY |
| Death | 7 Aug 1832 | Manhattan, New York, New York, United States |
| Burial | 7 Aug 1832 | New York Marble Cemetery, New York, New York, United States |
| Father | Major Gen William Anson Floyd,, Signer of the Declaration of Independence | F741 Group Sheet | |
| Mother | Hannah Jones, > | F741 Group Sheet | |
| Male William Nicoll Clarkson |
| Birth | 16 Jun 1795 | Bridgeton, New Jersey, USA |
| Death | 26 Sep 1851 | , Charleston, Charleston, South Carolina, USA |
| Burial |
| Male Samuel Floyd Clarkson |
| Birth | 29 May 1797 | New York, New York, New York |
| Death | 31 Dec 1868 | New York City, New York, United States |
| Burial | 4 Jan 1869 | Brooklyn, Kings Co., New York |
| Female Hannah Floyd Clarkson |
| Birth | 31 Jan 1793 | Philadelphia, Pennsylvania, United States |
| Christening | 10 Mar 1793 | Philadelphia, Philadelphia, Pennsylvania, United States |
| Death | 31 Jul 1870 | Poughkeepsie, Dutchess, New York, United States |
| Burial | Green-Wood Cemetery, Brooklyn, Kings, New York, United States |
| Female Harriet Ashton Clarkson |
| Birth | 23 Sep 1786 | Philadelphia, Philadelphia, Pennsylvania, United States |
| Death | 13 Dec 1859 | New York City, New York, United States |
| Burial | Dec 1859 | Brooklyn, New York City, New York, United States |
