| Date of birth: | Mar 19, 1944 |
| Hair: | Dark brown |
| Eyes: | Hazel |
| Pob: | Newport, New Hampshire |
| Ori: | NHNSP0801 |
| Nh bci no sid: | NH78578 |
| Ncicfpc: | 19 04 07 07 04 12 53 05 05 TT |
| Ncic: | W926200033 |
| Nationality: | American |
| Inmate name: | McGrath, John William |
| Fbi no: | 562674H |
| Extradition: | Nationwide |
| Date: | Aug 13, 1974 |
| Complexion: | Medium |
| Case: | I-85-035 |
| Build: | Medium |
| Booking location: | New Hampshire |
| Description: | Four Counts of Murder, |
| Charges: | N/A |
| Description: | Escape from NH State Hospital |
| Charges: | N/A |