490th Port Battalion veteran Charles Sprowl attended this reunion back in 2007. The 490th was attached to the 1st ESB for the Normandy invasion. My grandfather didn't do much more than exchange letters and Christmas cards with his old Army buddies, but many of the other veterans I speak to frequently met each other at their own informal reunions. For several different WWII Army units I have come upon 1945/46 documents listing men with their home addresses. It seems that these were put together to that the GIs could keep in touch after the war.
A groups of friends from the 304th Port Company met every few years. My grandfather was in this same company, but he didn't know these guys. From left to right: Tom Gardner, Bob Calfee, Jack Shireman, Ray Sonoski, Dick Justice, Matt Marvin, Dave Weaver, and Bruce Kramlich. I have spoken to all but to two of these veterans.
Gaetano Benza sent me a most impressive photo of a 1948 reunion at the Hotel Piccadilly in Brooklyn. He served in the 279th Port Company, which was attached to my grandfather's 519th Port Battalion for the Utah Beach invasion. They had some very well attended reunions for years after the war.