soc.history.living - join
Living history and reenactment, issues and info.
Low activity, 54 subscribers, Usenet

alt.war.civil.usa - join
Discussion of the U.S. Civil War (1861-1865).
Medium activity, 254 subscribers, Usenet

soc.history.war.us-civil-war - join
Aspects of the U.S. Civil War. (Moderated)
Low activity, 218 subscribers, Usenet