My old man was on the SS Matsonia for two weeks as the relief "sparks" (shipboard name for a radio operator) during June 1946. As you already know, passenger ships required three radio operators so as to have 24-7 coverage. The SS Matsonia had just been returned to the owners and was back on the old route between the west coast and Hawaii. They alternated the runs between the ports of Las Angeles and San Francisco. Attached is a memento postcard the old man had in his files from that trip.Maritime service ... Matson.