Great-great grandparents separated?

What happened with my Great-Great grandparents, John Alexander Schell and Mary Jane Ross? Many years ago I found John A Schell listed in the 1911 Canadian census living with one of their daughters in Muskoka. He died a few months after the census (confirmed with death certificate). Since John was listed as a widower, and family trees uploaded on WorldConnect gave death dates for Mary Jane as around 1902 or 1905, I accepted that she had died sometime between the 1901 and 1911 censuses. The couple were together in New Lowell at the time of the 1901 census. I have yet to locate burial location for either one of them. Were they buried together, or separate in the vicinity of the locale of their death? I have visited the Angus Cemetery numerous times (many of my branches have been buried there) over the years and they are not buried there. I haven't made the time to visit the New Lowell or Glencairn cemeteries (where other branches are located), but have purchased the Cemetery books published by the Simcoe Branch of the OGS for those two cemeteries. I have also searched a similar book for the Stayner cemetery at the library for the Saskatchewan Genealogical Society. Besides the mystery of their burial location, where was Mary Jane (nee Ross) Schell at the time of the 1911 census. I will need to recheck my records, but I believe I have previously accounted for all of their children in that census and Mary Jane is not listed with them. If Mary Jane was still living, but the couple living apart, in 1911, why was John A listed as widowed? I know quite often, a divorced person was listed as widowed to avoid public shame. However, I also know that information recorded in a census is not always accurate for a variety of reasons.

Aboriginal Ties?

One of my Allen cousins contacted me asking me what information I had on our great-grandmother, Mary Jane (nee Woodland) Allen. He had been talking to another cousin who, over the years, had heard her father and one of his sisters make references to Mary Jane being native. My cousins also have the understanding that grandchildren of Mary Jane Woodland who had lived in the Parry Sound area had hunting/fishing rights in Alquonquin Park only granted to people with Aborginal blood. Unfortunately, those individuals are now deceased and their only remaining sibling was born after their grandmother had died. I do not remember my father ever mentioning any aboriginal ties, but then he rarely mentioned the brother that only lived a few hours. Any documentation I have on Mary Jane Woodland has her listed as Irish with both parents being born in Ireland. Similar for my Allen ancestors, the exception being Mary Jane Woodland's mother-in-law, Mary Ann Widdis, who was born in Upper Canada. Mary Ann's oldest brother was reportedly born in New York before the Irish born parents located in what is now Mono Township in Ontario. My cousins' information has Mary Jane Woodland being baptised as St. James Anglican Church in Toronto. I have never found her baptismal information, but both her parents (Joshua Woodland & Catherine Craig) and in-laws (Robert Allen & Mary Ann Widdis) were reportedly married in that church. So it is reasonable that their children were eventually baptised in that church. How does one go about proving, or disproving, family folklore?