| Crewmember | Flight Sergeant J D Syverston |
|---|---|
| Rank | Flight Sergeant |
| Service number | unknown |
| Awards | unknown |
| Date as recorded | 31-7-1-8-44 |
| Date range | unknown |
| Squadron / unit | 100 |
| Aircraft | Lancaster III (LM585, code HW-S) |
| RAF station / departure | Grimsby |
| Time | 21:56 |
| Location / duty / target | Foret-de-Nieppe |
| Incident | Crashed at Haverskerque |
| Fate | Killed |
| Buried or commemorated | Haverskerque British Cem |
| Command | Bomber Command |
