Octave Caron and Adelaide Perreault [the couple from the 1881 Census] did have a son, J-B. He married twice but not to Ida. You have the wrong parents for Jerry:

"Montana, County Marriages, 1865-1950," Jerry Carrom, 1897
Name: Jerry Carrom
Titles & Terms:
Event: Marriage
Event Date: 23 Jan 1897
Event Place: Dillon, Beaverhead, Montana
Age: 32
Marital Status: Single
Previous Spouse:
Race: White
Birth Date:
Birthplace: Canada
Estimated Birth Year: 1865
Father: Thomas Carrom
Father's Titles & Terms:
Mother: Mary Bonet
Mother's Titles & Terms:
Paternal Grandfather:
Paternal Grandmother:
Maternal Grandfather:
Maternal Grandmother:
Additional Relatives:
Spouse: Ida Mailhoit
Spouse's Titles & Terms:
Spouse's Age: 20
Spouse's Marital Status: Single
Spouse's Race: White
Spouse's Birth Date:
Spouse's Birthplace: Canada
Spouse's Estimated Birth Year: 1877
Spouse's Father: Michael Malhoit
Spouse's Father's Titles & Terms:
Spouse's Mother: Minnot Lavet
Spouse's Mother's Titles & Terms:
Spouse's Paternal Grandfather:
Spouse's Paternal Grandmother:
Spouse's Maternal Grandfather:
Spouse's Maternal Grandmother:
Volume/Page/Certificate Number: it7 cn350
Film Number: 1905608
Digital Folder Number: 4351340
Image Number: 730
Source Citation
"Montana, County Marriages, 1865-1950," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/F331-Q7Y : accessed 10 May 2012), Jerry Carrom, 1897.

Chris