Sorcha,Great Site. It's late and I have not had much of a chance to really investigate it, but it sure looks like it's going to be one of my favourites.
I am presently starting to read an article on John Burns of Gettysburg, who was in his seventies in JUly 1863 and joined in the fighting, I don't know if he survived or not. There is a great photo of him in the article.
Thanks