Isaac Gayman/Gehman (1755-1819) and his wife, Elizabeth, are bu. in Northumberland Co., Pa. They had four children: John Jacob (1789-1845) of Dauphin Co., Pa.; Carl/Charles (1792-1816); Elizabeth (b. 1799) m. Andrew Ryan, Sr., of Dauphin Co., Pa.; and Leah (ca1802-1879). This book gives the history and genealogy of these descendants. Isaac was the eleventh child of Christian and Magdalena Gehman of Berks Co., Pa. (66pp. illus. index. Author, 2004.)