I have done some looking for you. Arcene/Arsene is a very unusual first name for a woman. It is usually a man's name.
I found:
BENONI PHANEUF
Père: PIERRE PHANEUF
Mère: ROSALIE GIRARD
Gedcom de Henry, Pierrette (316): Hamel, Henry, Bouthillier, Carrier, Archambault (08-2007)
Date de mariage: 21 OCT 1834 Lieu: ST PIE
ARSENE HAMEL
Père: MICHEL HAMEL
Mère: BRIGITTE BOUDREAU
Note this daughter and the spelling of the surname:
Groom's Name: John St. Clair
Groom's Birth Date: 1838
Groom's Birthplace: Canada
Groom's Age: 25
Bride's Name: Praxade Fannaff
Bride's Birth Date: 1841
Bride's Birthplace: Canada
Bride's Age: 22
Marriage Date: 10 Nov 1863
Marriage Place: Chicopee, Hampden Co, Massachusetts
Groom's Father's Name: John St. Clair
Groom's Mother's Name: Emily Richards
Bride's Father's Name: Beloney Fannaff
Bride's Mother's Name: Arcen Hamelle
Groom's Race:
Groom's Marital Status: Single
Groom's Previous Wife's Name:
Bride's Race:
Bride's Marital Status:
Bride's Previous Husband's Name:
Indexing Project (Batch) Number: M00885-4
System Origin: Massachusetts-EASy
Source Film Number: 2027069
Reference Number: Item 3 p7 rn3064
Collection: Massachusetts Marriages, 1695-1910
It looks like Praxade was Alexander's sister and that she later married a Freeman. Her age is estimated in the death record and is off the age in the marriage record.
Michigan death records for the two:
http://seekingmichigan.org/u?/p129401coll7,687580 http://seekingmichigan.org/u?/p129401coll7,398698 The father is listed as William or Benjamin. I do not know about the William. I have, however, seen many cases were the name Benoni/Beloni wass changed to Benjamin in the States.
Chris