Peter Hammer was born 19 August 1757 in Bucks Co., Pennsylvania, married 17 Sept. 1812 in Monongalia Co., Virginia to Sarah Pearce, and died 18 April 1838.
Previously published by Magna Carta, Baltimore. Published as a set by Genealogical Publishing with the two vols. of the Genealogies in the Library of Congress, and the two vols. of the Supplement. Set ISBN is 0806316691.
