I'm not sure if we're on the same track or not because I never knew that Joseph's middle name was Beno; although it makes sense when one knows that one of his son's given name was William but he was known in the family as Benny.
This is what I know of the Joseph LaFriniere in my family:
I first found him in the 1870 census the only child of John and Madeline Lafrinier (I'm doing this from memory) and they lived in the area that was later to be White Earth Indian Reservation. Madeline Saice Lafrinier was a half-breed Chippewa (Turtle Mountain Pembina Band - later attached to the White Earth Reservation. He father was Joseph Saice and her mother was Louisa LaRussette or Russette. Joseph's father was Joseph Saice, his mother was Mary and he had a brother, Charles, and a sister, Annie. The Saice families on White Earth Reservation are descended from these two men.
I do not know where John Lafrenier came from but on several of his children's death certificates Trois Riveres, Canada is given as his place of origin. I know nothing of his family and he deserted his family and went to northern Alberta, Canada in the late 1800's.
Joseph was the eldest child of this union. Other children were Mary (Starkey), John, Charles, Louis (actually Aloysius), Antoine (my grandfather), Nora (Lindstrom and Hogquist) and Julia (died in early childhood). I have obituaries for all the children except Julia as well as for Madeline (Bettner - the name of her second husband). I also have copies of the death certificates for these people (except for Julia).
I believe that Joseph married Josephine Sharbono (this is the way most of her family spells the name although there are a few exceptions) in 1901. Josephine had been married previously to a William Duncan McDougal and had a son (James) from that marriage. James died the same time as Josephine and Vernie Lafrinier during the flu epidemic of 1918. Joe's brother, John, died during this epidemic also.
To the best of my knowledge Pitchie (or Ernest) is the only surviving child of Joe and Josephine. Grace, the widow of Benny (or William) is still living also. And numerous grandchildren, great-grandchildren, etc. I have obituaries for most of the sons and for Toots.
As to the Sharbono side I have good information, also on the Saice family and the DeMarre family. I'm still trying to find the clues to further study on the Lafrinier family. In the family the name is spelled many different ways - Lafrinier, Lafriniere, LaFreniere, LaFrenierre - these I know for sure and there are most likely a few others. One learns to keep an open mind on spelling, dates, family lore, etc. I'm really curious as to this Ontario connection as I've never heard of it before and would like to check it out.
If this is helpful to you let me know and maybe we can solve some mysteries together.