Tom,
Wayne Stark's list of surviving civil war artillery is at the link below. Wayne is no longer with us and Jim Bender is now the caretaker of "the list". Many more additions have been made since this one was posted some years ago. But it is still a wealth of info. And trust me, this isn't going to make you stop inspecting every gun on the field you are visiting. Ask my wife.

Keith

http://www.cwartillery.org/ws-reg.html