(Notes: You may have to scroll down or right to see chart.)
| John J. Gibson | |
| B: | 19 Apr 1871 |
| Portland, Cumberland, Maine | |
| D: | 16 Apr 1950 |
| Georgetown, Sagadahoc, Maine | |
| Blanche Powers Snowman | |
| B: | 12 Jan 1867 |
| Georgetown, Sagadahoc, Maine | |
| D: | 24 Jul 1952 |
| Georgetown, Sagadahoc, Maine | |