In my father's possessions was a card that he loved showing. It is titled "Ancient Order of the Deep" . It is dated 28 Jan 44. I believe it was from his return voyage to the US after the war from somewhere in the South Pacific. He became a "Trust Shellback" having crossed the equator at longitude 175 West on that date. The ship was the USAT Sloterdyk. The card is Attested by Capt Bernard R Heller (that is the best I can do to read the signature)
I would love to get any other info about that voyage. Date of departure and port of departure and arrival.