'Joseph Reiff [son of Hans Heinrich and Anna (Hitz) Reiff], b. 8 Sep 1657, Wädenswil. He went to Ibersheim, Pfalz with his father in 1673. ... [H]e may have been the father of the three Reiff brothers who arrived in Pennsylvania in 1717.'
8 Sep 1657 is his baptism date, as indicated in an email from Richard Davis.
'Joseph Reiff [son of Hans Heinrich Rÿff and Anna Hitz] bapt. Sept. 8, 1657, Wädenswil, Zurich, Switzerland, and d. prob. Ibersheim, Germany. He m. ____ ____.'