I'm reading War Beneath the Sea and this account in the book said some of the beatings they received were from survivors of the ships they just sunk.
Quote: clubbings and kickings were being administered by the burned, mutilated survivors of our own handiwork, we found we could take it with less prejudice!
I'm not sure why this was omitted from the writings you have. Perhaps the year the book was written and sugar coated for some reason. At any rate, O'Kane is the highest in sunk vessels and was awarded the Medal of Honor.