Jerome Family from French Canada to Minnesota

I am looking for the ancestry of my great grandfather, Peter Jerome, who was born in French Canada in 1840. He came to the U.S. in 1854 and was in Marine, Washington County, Minnesota for some time. He married Hannah Cronk in 1865 and eventually settled in Miltona, Douglas County, Minnesota. Other family names in Minnesota or Canada are Denis Jerome, Joseph Eusebe Jerome, Marie Reine Jerome, Onesime Jerome, Mary Jerome LaPage.
Jane G8rtreenut@aol.com