Re: women in chess in Montreal:

I have no record of a "Canadian" women's championship held in Montreal in 1951, so the article may have been referring to the "Montreal Ladies' Championship" held in the same (or previous) year. I may be able to find crosstables for any of the events I describe, if you want them.

1937: November: An all-woman club - the Cercle Femina, started. It was mentioned in newspaper columns in 1937, 1938, 1946, and 1947. The 1945-46 club champion was G. Archarngelo; the 1946-47 club champion was Anna Cosgrove.
1945: Gisela Gresser (US women's champion) simul (18 boards) at Montreal CC. Won 12; drew 0; lost 1 (J.E. Patenaude).
1949, June: the Montreal Ladies' Championship was won by Firda Bone. (Was Fieda Bono a typo, or an alternate name?)
1950, June: The 8-player Ladies' championship was won by Firda Bone (6-1), I. Steven (5-2).
1951, July: the Ladies Championship (5 players) was won by Firda Bone (4-0), for the third year in a row.
1952, May: The 5-player Ladies' championship was won by Doris Robertson (4-0).
1953: Ladies Championship proposed, but never held.
1957: Ladies Championship proposed, but never held.
1958: 5 of the 80 entries in the Montreal Championship Open were women.
1959: 4 of the 104 entries in the Montreal Championship Open were women.