Chiefly a record of some of the descendants of John Hammer. He was born in 1683 probably in Wales or Germany. He married Jane ca. 1710. She was born ca. 1690 probably in Wales. She died before Jun 1744. They were the parents of seven children. He married Jane Andrews, widow of Samuel Stanfield, 11 Oct 1744. She died before 12 Jul 1746. He died in 1765 in Roxborough Township, Pennsylvania. Ancestors, descendants and relatives lived in Pennsylvania, Indiana, Missouri, California, Texas, Tennessee, Oklahoma, Iowa, Colorado, Oregon, Kansas, Washington and elsewhere.