Abstract Mahlon Dickerson Manson (February 20, 1820 – February 4, 1895) was a druggist, Indiana politician (serving in the Indiana legislature, as a U.S. Congressman, and as Indiana Lieutenant Governor), and a Union general in the American Civil War. Manson was born in Piqua, Ohio, to David Manson, Jr., and Sarah Cornwall and was a descendant of David Manson (aide to Revolutionary War General George Washington). Manson’s family would later move from Ohio to Crawfordsville, Indiana, and, after...