Individual Details
Living
( - )
Families
| Father | John Clark Cowan (1899 - 1974) |
| Mother | Ollie Adrienne Selma Close (1906 - 1963) |
| Sibling | John C Cowan Jr (1925 - 2001) |
| Sibling | Living |
| Sibling | Living |
( - )
| Father | John Clark Cowan (1899 - 1974) |
| Mother | Ollie Adrienne Selma Close (1906 - 1963) |
| Sibling | John C Cowan Jr (1925 - 2001) |
| Sibling | Living |
| Sibling | Living |