1876 - 1963 (86 years)
| David Ian McDougal Keefler | |
| B: | 26 Jul 1925 |
| Alice Whitney Thomson | |
| B: | 1899 |
| D: | 1967 |
| Ancaster, Ontario | |
|
| Ernest Hamilton Poupore Thomson | |
| B: | 25 Sep 1876 |
| Chichester, Pontiac Co., Quebec | |
| D: | 1963 |
| Detroit, Michigan, USA | |
| Muriel Leet Whitney | |
| B: | Abt 1890 |
| D: | 1910 |
| Frances Hamilton Thomson | |
| B: | 30 Sep 1912 |
