There used to be a veterans association for GIs who were in Korea with the US 2nd Infantry Division, but it closed down in April 2011:
http://www.2id.org/
There are some links there, but it seems that the site was supposed to have been removed at the end of 2012.
It was suggested that members go to the 2nd (Indianhead) Association instead:
http://www.2ida.org/
It might be worth contacting them and seeing if any of the Korean War veterans remember your man?