There are several DeMars families in the Twin Cities (MN). One family told me that there were 24 children in one of them, but only about 2 lines had been traced back. I'm still trying to find descendants of a WILLIAM DEMARS and son of same name who lived in St. Paul in early 1900's.
MAGLORE DEMARS doesn't sound familiar. What part of Minnesota? Was it Little Canada, Vadnais Hts., Centerville, or White Bear Lake, Ramsey county (N. of St. Paul?)These areas were predominantly French-Canadian.