John Adam Wieder, the ancestor of the family in Lehigh County, was born in Germany, October 31, 1721. He emigrated to America in the ship St. Mark, which arrived in Philadelphia from Rotterdam, Holland on September 26, 1741. He settled in Salisbury Township where he was assessed £10 in 1762. He lived near what is now Waldheim Park between Mountainville and Emaus, and in a survey of the road laid out in 1760 from Emaus to Bethlehem his name appears as a landowner on the south side of the road. He cultivated his land until his death. July 16, 1798, aged 76 years, after which his sons, Adam and Valentine, executors of his estate, sold the tract of 171 acres and 38 perches on April 10, 1799, to Martin Ritter for twelve hundred pounds. He was in all probability busied in the old Allentown Cemetery. He and his wife Anna Margaret, had ten children.