Individual Details
Living
( - )
Families
| Spouse | Richard E. Watterson (1933 - 1978) |
| Child | Living |
| Child | Living |
| Child | Living |
| Child | Robert Edward Watterson (1957 - 1987) |
| Child | Living |
| Child | Living |
| Child | Living |
| Father | Henry H. Groff (1915 - 1979) |
| Mother | Florence Elnora Singer (1918 - 2008) |
| Sibling | Living |
| Sibling | Living |