Neil Douglas Williamson was born in United States of America to Douglas Williamson (1912-2000) and Zona Mink (1912-1997) . He married Alice Jean Phillips .
Children
| Name | Birth | Death | Joined with |
| Heidi Williamson | Mr. Kalous | ||
Siblings
| Name | Birth | Death | Joined with |
| Neil Douglas Williamson | United States of America | Alice Jean Phillips | |
| Joyce Donline Williamson (1932-1932) | 22 October 1932 Wayne County, Michigan, United States of America | 23 October 1932 Wayne County, Michigan, United States of America | |