Individual Details

There is a website "Tri-Couties Genealogy & History" by Joyce M. Tice
http://www.rootsweb.com/srgp/jmtindex.htm
which has much information about the counties of Bradford & Tioga in PA and Chemung Co NY.
I apparently found the first wife of Stephen Avery There is a link to Pioneer & Patriot Families of Bradford Co PA 1770-1800, p.219, which contains a biography of Joshua Bailey, a native of Orange Co NY. He came to Wyalusing PA in 1791, staying with the family of Amos Bennett who were former neighbors. He married Mr. Bennett's daughter, Susan, the next year. They moved to a place on Sugar Creek in North Towanda and he died there, age nearly 92, 14 Feb 1861. The article states that his eldest daughter Pruda Bailey, born 30 May 1795, married Stephen Avery and moved to Ohio.

Birth	30 May 1795
Marriage		Bradford County, Pennsylvania - Stephen AVERY

Spouse	Stephen AVERY (1796 - 1849)
Child	Joshua B. AVERY (1815 - )
Child	Stephen AVERY (1832 - )