John Patrick Grennan, Jr. |
| Born | 21 Aug 1921 | Bristol, CT, US |
| Died | 8 Jul 2007 | Jupiter, FL, US |
| Buried | 14 Jul 2007 | St. Peter Church, 1701 Indian Creek Parkway, Jupiter, FL, US |
| Married | ||
| Other Spouse | Rita Rose Hackett | F2152 | |
| Married | 9 Aug 1943 | Norfolk, VA, US |
| Father | John Patrick Grennan | F952 Group Sheet | |
| Mother | Pauline E. Zinker | F952 Group Sheet | |