I have a grt-grt-grandfather Joseph Prieur, b. abt. 1834 "near Montreal, Quebec." Married twice, the 2nd time to Eleanor Deveau from St. Polycarpe Quebec. They moved to Saginaw, Michigan about 1865, then to West Branch, Michigan around 1875. Joseph died in WB in 1901, Eleanor in1920, and had lots of children.
Any chance my Joseph and your Joseph were the same?