Indeed-Outfeed board, TMS and ZULU have posted some interesting civil war reproduction camp items. Another member here A J HAMLER is a very knowledgeable maker of civil war furniture and has published articles and books on the subject. You can find some of his work with a google search for his name. Another source for civil war camp furnishings is this URL. I wonder how much of the inspiration for some of the camp furniture came from the British Campaign furniture experience.
http://winchestersutler.com/WoodCamp.html