Individual Details
Jan Howland DeWitt
( - )
Families
| Spouse | Judith Louise Pellett |
| Child | Peter Randall DeWitt |
| Child | Sarah Harwood DeWitt |
| Child | Jonathan Charles DeWitt |
| Spouse | Rosalie Angus Cobbs |
| Child | Jan Howland DeWitt Jr. |
| Child | Heather DeWitt |
| Spouse | Helen Crowninshield |
| Father | Deweese Ware DeWitt |
| Mother | Eleanor Alice Randall |
| Sibling | Betsey Alice DeWitt |