John was born in Hempstead Town, Queens County, Long Island, New York. He was the son of Jonathan Rowland II and Martha Seaman. John married Mary Marvin in the Town of Hempstead, Queens County, Long Island, New York.2
Citations
[S74] Ada Clementine Acker Haight, The Richard Washburn Family Genealogy: a family history of two hundred years outlining the ancestors & descendants of Richard Washburn with some connected families, page 1217.
[S130] Joseph H. Wenger, The Curfman-Kurfman Corfman-Korffman Genealogy, pp.21.