Nicky, They were probably from Freeport, as the major mustering-in for the 12th was at Camp Butler, IL (at Springfield). You could try typing in "civil war records Illinois" in your search engine to get a variety of sites for the records or go to: http://www.sos.state.il.us/depts/archives/datcivil.html for one specific site. (This site also has a PDF file which gives the history of the various units.) Sam Brown Benbrook, TX