- Born: 24 Aug 1707, Bardelome, Germany
- Marriage (1): Elizabeth Allebach on 6 Mar 1723 in Salford County, Pennsylvania
- Marriage (2): Catherine Markley in 1764
- Died: 1781, Montgomery County, Pennsylvania at age 74
Noted events in his life were:
• will, 21 Feb 1782. Will Abstract: John Clemens, of Buckingham, Miller. August 6, 1781. Proved February 21, 1782. "Far advanced in years." Wife Catharine. Son Garet and his two eldest children, John and Elizabeth. Son Jacob. Children of dau. Margaret Bugwalter, December'd. 2 youngest children of dau. Ann Springer, December'd. Philip Krotz, of Plumstead and Jacob Yodder of New Britain, exrs. Wit: Gabriel Swartslander, Jacob Lapp and Abrm Stout.
Johannes married Elizabeth Allebach, daughter of Unknown and Unknown, on 6 Mar 1723 in Salford County, Pennsylvania. (Elizabeth Allebach was born in 1711 in Bardelome, Holland and died before 1764 in Salford Township, Pennsylvania.)
Johannes next married Catherine Markley in 1764.