And, yes, Chamberlain was in that battle, and I think was wounded---a wound from which he always had problems, despite living until 1913 . . . the 50th anniversary of the battle. He died shortly thereafter.
Wasn’t he awarded the CMH for Little Round Top???
I believe the wound you're referring to was suffered at Petersburg in June 1864 where he was shot through the right hip and groin. The wound was expected to be fatal, but his pulled through. Still, Chamberlain was wounded 6 times during the war, and I'm sure any one of them caused problems later in his life.
LOL. Great analogy.