The USS Irex SS–482:
Left portion of the crew pictured in 1956

[ left group ]

Hopefully, with your help, I'll be able to identify these faces. To the left is probably John “Dutch” VanDerHeiden (rather than Chief Hannon), and otherwise the three rows are, starting from the rear:

Wayne Puntel Haas: After torpedo Lemieux; Radioman
Bill Heagney Wally Russian Krupenevich: Torpedoman
Hence Moore: Steward Art Callahan
complete group
center portion
right portion