Career
Born in Shawangunk (now Wallkill), Ulster County, New York, he received a limited schooling, became a surveyor and was engaged in agricultural pursuits. In April 1790, Schoonmaker was elected to the 2nd United States Congress, holding office from March 4, 1791, to March 3, 1793. Schoonmaker died in Shawangunk in the spring of 1796, and was interred in Old Shawangunk Churchyard at Bruynswick, in Shawangunk.