| Father | Male John Patrick Grennan, III |
| Born | 1 Dec 1944 | Hartford, CT, US |
| Died | 9 Jan 1999 | Bristol, CT, US |
| Buried | 13 Jan 1999 | St. Joseph Cemetery, Bristol, CT, US |
| Married | ||
| Father | John Patrick Grennan, Jr. | F2152 Group Sheet | |
| Mother | Rita Rose Hackett | F2152 Group Sheet | |