This factsheet explains the history of Canadian antisemitic policy and the rejection of Jewish refugees fleeing the Nazi regime.
Abella, Irving, and Harold Troper. “‘The Line Must Be Drawn Somewhere’: Canada and Jewish Refugees, 1933–9.”Canadian Historical Review 60, no. 2 (June 1, 1979): 178–209.https://doi.org/10.3138/CHR-060-02-04.