Joseph Daver (1745-1824), a native of Scotland and a cooper (barrel maker) by trade, migrated to Chester County, Pennsylvania in 1781. After the death of his wife in 1790, he moved to Path Valley and lived near Spring Run. Path Valley is located in Franklin County in South Central Pennsylvania, east of the Tuscarora Mountains. Joseph spelled his name Daver or Deavor, but some of his descendants used the spelling Devor. This book follows the descendants of Joseph's three sons, James Devor (1765-1842), Jesse Daver/Deavor (1771-1833) and Jacob Deavor (1779-1840). A bibliography and a full-name index are included.