William W. Yerxa
- Son of William Yerkse and Catrina Sie
- Born 27 November 1764 at Philipsburgh NY
- Married Mary Foshay
- Resided at Mount Pleasant NY
- Died 27 July 1849
- Mary (Polly) Foshay was born about 1773
- Daughter of John Foshay
Children of William W. Yerxa and Mary Foshay
- Elizabeth born 29 January 1785
- John F. born 5 May 1788
- William born about 1790
- Ann born 26 December 1791
- Abraham born 1 June 1795
- Jane born 23 January 1799
- Eliza born 25 February 1801
- Elijah born 11 November 1804