Based on info so far, my St. Polycarpe relatives were:

Joseph Devaux and Adelaide Dault, with children:
Emily, b. 1835, d. abt. 1905-1910, Saginaw, Michigan
Eleanore, b. 1837, d. 1920, West Branch, MI
Isaac, b. 1842, d. 1920, Defiance, Ohio
Peter, b. 1844, d. 1905, Saginaw, MI
Georgiana, b. 1846, d. 1905-1910, Saginaw, MI
Cordelia, b. 1851, d. 1929, Terre Haute, IN

Eleanore was my gr-gr-grandmother.
All emmigrated to the U.S. betw. 1865 & 1877.
Georgiana and Cordelia never married. Between the other four they had 26 children.
Cordelia became Sister Mary Flavian, Sisters of Providence,
Terre Haute.

If any of this looks familar, I'd be happy to trade info.

Sean