1892 - 1976 (83 years)
| Charles C. Forbes, ^ | |
| B: | Abt 1917 |
| NY | |
| D: | Yes, date unknown |
| Gloria A. Forbes, ^ | |
| B: | Abt 1918 |
| NY | |
| D: | Yes, date unknown |
| [s.\] Forbes, ^ | |
| B: | Abt Jun 1927 |
| D: | 23 Sep 1928 |
| Brookhaven, Brookhaven, Suffolk, NY | |
| Gordon Maxwell Forbes | |
| B: | 6 Feb 1930 |
| Brookhaven, Suffolk, New York, United States | |
| D: | 25 Jun 2020 |
| Lakewood, Lakewood Township, Ocean, New Jersey, United States | |
| June Lolita Cassidy | |
| B: | 2 Sep 1925 |
| Endicott, Broome, New York, United States | |
| M: | 16 Jul 1960 |
| United States | |
| D: | 27 Jan 1994 |
| New Jersey, United States | |
|
| Grace Bain Devall | |
| B: | 17 Sep 1892 |
| Manhattan, New York County, New York, United States | |
| D: | 19 Feb 1976 |
| Smyrna, Kent, Delaware, United States | |
| Harlow Campbell Forbes, ^ | |
| B: | Abt Aug 1893 |
| NY | |
| M: | 18 Sep 1913 |
| Manhattan, New York City, New York, United States | |
| D: | Yes, date unknown |
