Avid historical researcher and re-enactor David Connon, of Earlham has now published a new book, “Iowa Confederates in the Civil War.” On Sunday afternoon, Oct. 10, Connon will tell that fascinating and little-known story, and answer questions, in a program at 2 p.m. at the Greene County Historical Museum in Jefferson. The free program — with free refreshments, too — is a collaboration by Humanities Iowa, the Jefferson Public Library and the Greene County Historical Society.