1842 - Yes, date unknown
| Frank E Williamson | |
| B: | 1876 |
| New York, United States | |
| D: | Yes, date unknown |
| Lillie N Williamson | |
| B: | 1879 |
| New York, United States | |
| D: | Yes, date unknown |
| Annie R. Williamson | |
| B: | Feb 1872 |
| New York | |
| D: | 15 Oct 1963 |
| Newtown, Fairfield, Connecticut, United States | |
| Florance A Williamson | |
| B: | Abt 1870 |
| , , New York, USA | |
| D: | Aft 1930 |
| Elizabeth C Gates | |
| B: | 1842 |
| New York, United States | |
| D: | Yes, date unknown |
| Ezra King Williamson | |
| B: | 25 Jun 1825 |
| Stony Brook, Suffolk, New York, United States | |
| M: | 28 Jun 1868 |
| Stony Brook, Suffolk, New York, United States | |
| D: | 7 Mar 1900 |
| Stony Brook, Suffolk, New York, United States | |
