P.S. As a midshipman being trained in amphibious assault in 1967, I served on the U.S.S. Monrovia, which was Patton's Command Ship for the Sicily invasion -- perhaps your uncle's friend debarked from that ship?
You must have trained as some of the last on her. The USS Monrovial APA 31 (attack transport) Dec 1 1942 - Oct 31 1968, then was sold for scrap.