Individual Details
Trevia Cowan
( - )
Families
| Father | Raymond Carl Cowan (1926 - 1958) |
| Mother | Dorothy Jean Burr ( - ) |
| Sibling | Patricia Cowan ( - ) |
| Sibling | Linda Cowan ( - ) |
| Sibling | Raymond Carl Cowan Jr. (1956 - ) |
( - )
| Father | Raymond Carl Cowan (1926 - 1958) |
| Mother | Dorothy Jean Burr ( - ) |
| Sibling | Patricia Cowan ( - ) |
| Sibling | Linda Cowan ( - ) |
| Sibling | Raymond Carl Cowan Jr. (1956 - ) |