Plummer, Henry Vinton (31 July 1844–08 February 1906), Baptist clergyman and U.S. Army chaplain, was born in Prince George’s County, Maryland, the son of Adam Francis Plummer and Emily Saunders. His parents were slaves on “Goodwood,” the plantation of George H. Calvert, a direct descendant of Lord Baltimore. When he was still young, he was sold to people living in Washington, D.C., and then to Colonel Thompson in Howard County, Maryland....