| Crewmember | Sergeant Sumner |
|---|---|
| Rank | Sergeant |
| Service number | unknown |
| Awards | unknown |
| Date as recorded | 25/26.07.40 |
| Date range | 1940-07-25 to 1940-07-26 |
| Squadron / unit | 99 |
| Aircraft | Wellington Ic (P9274, code LN-) |
| RAF station / departure | Newmarket |
| Time | 21:50 |
| Location / duty / target | NW Germany |
| Incident | Crashed near Cambridge |
| Fate | unknown |
| Buried or commemorated | unknown |
| Command | Bomber Command |
