Crew list of Ships hit by U-boats
Daniel P. Singer
Merchant Marine. American
| Died | 21 Feb 1943 |
Roster information listed for Daniel P. Singer
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Rosario | Steam merchant | Radio Operator | 21 Feb 1943 (+) | U-664 |
| Died | 21 Feb 1943 |
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
| Rosario | Steam merchant | Radio Operator | 21 Feb 1943 (+) | U-664 |