I know this thread is pretty old, but I thought I could add something.
Pierre Louis Constant / Pinesi (1768-1834), who was the grand chief of the Algonquins had a few sons. Two of them were Jean Baptiste Contant / Kikons (1791-1881), who also became Chief of the Algonquins, and Jean Baptiste Constant / Kekandjkapawitch (1793-1879).
It is Kekandjkapawitch who married Marie Susanne Kiweabanokwe (1802-1874) August 5, 1816. I think it was these two who are the parents of the Simon Constant (1824-1899) in this thread, the one who married Mary Murphy (1833-1906) May 21, 1855 in Renfrew County, Ontario.
Kikons married Anastasie Otakkaminotinokwe and they also have a son named Simon Contant / Naabanweckam. This Simon Constant married Marie Anne Angeligue Kijiabanokwe August 21, 1849 in Oka.
Please correct me if I'm wrong.