I have just located the name Desgrosselier in my research. Seiere Degrosselier married Emaline Barbeau in Defiance, OH on Jan 8, 1867. Looking over the messages I am realizing that they used the surname Prosper, as that is a name I heard my mother refer to. These Barbeaus were living in Malone, NY before coming to Ohio. Do you have any knowledge of these Desgrosselier/Prospers? Many thanks.