By all accounts he was a class act, and became long-time friends with the man who gave up the homer, Ralph Branca. One interesting thing about that game is that if Thomson hadn't hit the home run and the Dodgers had won, he likely would've been the goat for having earlier tried to stretch a single into a double only to discover that teammate Whitey Lockman had stopped at second in front of him, leading to two Giants trying to stand on the same base. Oops.
Thank goodness I wasn't alive yet when it happened. It would've been a stake through the heart.