1886 - 1963 (76 years)
| Walter McCowan 1920- |
| Walter McCowan | |
| B: | 25 Feb 1920 |
 | Mary Nickerson 1918- |
| Mary Nickerson | |
| B: | 2 Jul 1918 |
| Frank Ashley McCowan 1925-1984 |
| Frank Ashley McCowan | |
| B: | 9 Nov 1925 |
| D: | 15 Feb 1984 |
| Ottawa, Ontario | |
| Elizabeth (Betty) Coutts | |
| M: | 1953 |
| Robert Ashbridge McCowan 1886-1963 |
| Robert Ashbridge McCowan | |
| B: | 13 Apr 1886 |
| Scarborough, York, Ontario | |
| D: | 11 Apr 1963 |
| Scarborough, Ontario | |
| Florence Hamilton Green 1884-1971 |
| Florence Hamilton Green | |
| B: | 23 Apr 1884 |
| Scarborough, York, Ontario | |
| M: | 26 Feb 1919 |
| York Co., Ontario | |
| D: | 12 Nov 1971 |
| Scarborough, Ontario | |
