Individual Details
Living
( - )
Families
| Father | Living |
| Mother | Living |
| Sibling | Agnes Auchinvole Cowan (1904 - ) |
| Sibling | John Cowan (1907 - ) |
| Sibling | Archibald Thomson Cowan (1908 - ) |
| Sibling | James Buchanan Cowan (1911 - ) |
| Sibling | Living |
| Sibling | Living |
( - )
| Father | Living |
| Mother | Living |
| Sibling | Agnes Auchinvole Cowan (1904 - ) |
| Sibling | John Cowan (1907 - ) |
| Sibling | Archibald Thomson Cowan (1908 - ) |
| Sibling | James Buchanan Cowan (1911 - ) |
| Sibling | Living |
| Sibling | Living |