| Born | 12 Oct, 1909 | Hamelin |
| Died | 12 May, 1943 | North Atlantic |
|
Ranks
Decorations |
U-boat Commands
| U-554 | 15 Jan, 1941 | - | 25 Jun, 1941 | No war patrols |
| U-579 | 17 Jul, 1941 | - | 22 Oct, 1941 | No war patrols |
| U-89 | 19 Nov, 1941 | - | 12 May, 1943 (+) | 4 patrols (206 days) |
Patrol info
| U-boat | Departure | Arrival | |||||
| 1. | U-89 | 14 May, 1942 | Kiel | 27 May, 1942 | Brest | 14 days | |
| 2. | U-89 | 6 Jun, 1942 | Brest | 21 Aug, 1942 | Brest | Patrol, | 77 days |
| 3. | U-89 | 4 Oct, 1942 | Brest | 19 Nov, 1942 | Brest | Patrol, | 47 days |
| 4. | U-89 | 24 Jan, 1943 | Brest | 28 Mar, 1943 | La Pallice | Patrol, | 64 days |
| 5. | U-89 | 25 Apr, 1943 | La Pallice | 12 May, 1943 | Sunk | Patrol, | 18 days |
| 4 patrols, 206 days at sea | |||||||
Ships hit by Dietrich Lohmann
| Date | Boat | Name of ship | Tons | Nat. | Convoy | Fate * | |
| 25 Jul, 1942 | U-89 | Lucille M. | 54 |  | ca | ||
| 3 Nov, 1942 | U-89 | Jeypore | 5.318 |  | br | SC-107 | |
| 4 Nov, 1942 | U-89 | Daleby | 4.640 | | br | SC-107 | |
| 7 May, 1943 | U-89 | Laconikos | 3.803 |  | gr | SL-128 | |
| 13.815 | |||||||
* Unless otherwise noted the ships listed here were sunk. | |||||||
Decorations and ranks information is in many cases not complete. If you can help on any of those missing that would be great.