Crew list of Ships hit by U-boats
Edward Ervin Knopf
USN. American
Roster information listed for Edward Ervin Knopf
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Tachirá | Steam merchant | Seaman Second Class | 12 Jul 1942 | U-129 |
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
| Tachirá | Steam merchant | Seaman Second Class | 12 Jul 1942 | U-129 |