I have a Peter Turner/Pierre Bitournay married to Mary Seymour/Simard living in Plattsburgh starting with the 1840 census of that county.They had two daughters, Sally/Celeste married to Edward Thompson about 1853 and Lina married to Patrick Caffrey/McGaffrey (sp ?)at St. John's Plattsburgh about 1854. This Turner family is probable related to the Paul Bitourney family also in the same area.I am working the line back to Canada and it looks like St. Constant's in Quebec is a good place to look.Duquette is somehow realted to the Allard family in my history. Other lines connected to the Betournay bunch:Beaudin/Baudin Seymour/Simard, Labarre.Be happy to exchange more with you if you think we are connected.