Crew list of Ships hit by U-boats
John William Keiser
USNR (6554156). American
Roster information listed for John William Keiser
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | USS Block Island (CVE 21) | Escort carrier | Aviation Machinist's Mate Second Class | 29 May 1944 | U-549 |