The Jones Family of Pennsylvania emigrated from their native Wales in the seventeenth century, when Jonathan Jones was just a child. The Joneses settled in Merion, and Jonathan (b. 1680) went on to marry Gainor Owen (b. 1688), whose family came from Wales at about the same time. They had eleven children, including Owen Jones (1711-1793), the last provincial treasurer before the Revolutionary War. Owen Jones (d. 1793) married Susannah Evans, had ten children, and inherited his father Jonathan's land in Merion upon his death. Owen's (d. 1793) two sons Owen (1744-1825) and Jonathan (1762-1821) became prominent merchants in Philadelphia. Owen established a firm with Amos Foulke, named Jones and Foulke, and Jonathan partnered briefly with Caleb Foulke in a firm under the same title, Jones and Foulke. The elder Owen Jones passed away in 1793, and soon his son Owen changed the firm Jones and Foulke to Owen Jones and Company, dealing in tea, textiles, and other dry goods. He married Mary Wharton and then, upon her death, he married Hannah Smith. He died without children in 1825. His brother and fellow merchant Jonathan married Mary Powel Potts, who died without bearing any children. Jonathan and his second wife, Mary McClenaghan had one son also named Owen Jones (d. 1878). Jonathan died soon after his son's birth, leaving the younger Jones his estate in Merion, including the home he built on the land in 1818, Wynne Wood. Owen Jones (d. 1878) attended the University of Pennsylvania and was admitted to the bar in 1842. He also served as a member of the thirty-fifth Congress and formed Troop B, First Pennsylvania Cavalry, with which he was a colonel during the Civil War. After the war, he went back to his practice and passed away in 1878. He and his wife Mary Roberts had one son, J. Aubrey Jones, who inherited the family estate in Merion.
From the description of Jones family papers, 1681-1869. (Historical Society of Pennsylvania). WorldCat record id: 83104782