John R. Heffernan
| Class Year | 1942 |
| Rank | LTjg |
| Service | USN |
| Conflict | WWII |
| Born | |
| Hometown | West Roxbury, MA |
| Died | 10/01/1944 (MIA) |
| Location of Death | South Pacific |
Additional Information
Awards and Decorations: Purple Heart
Memorialized: Manila American Cemetery, Taguig City, Philippines