Individual Details
John Calvin Hammack
( - )
Families
| Father | Homer Hammack |
| Mother | Ruth Francis Neal (1923 - 1990) |
| Sibling | Dale Steven Hammack |
| Sibling | Carol Sue Hammack |
| Sibling | Janet Leigh Hammack |
| Sibling | Katherine Frances Hammack |
( - )
| Father | Homer Hammack |
| Mother | Ruth Francis Neal (1923 - 1990) |
| Sibling | Dale Steven Hammack |
| Sibling | Carol Sue Hammack |
| Sibling | Janet Leigh Hammack |
| Sibling | Katherine Frances Hammack |