The story
American comic books were barred from crossing the border into Canada when the War Exchange Conservation Act passed in December 1940. In order to fill in the void and supply Canadian kids' appetite for comic books, Anglo-American and Maple Leaf Publishing started publishing comics in March 1941.
In 1941, Anglo-American Publishing hired Doris Slater, the first female cartoonist in Canada. Slater worked on multiple titles for Anglo-American, including Pat The Air Cadet.
Anglo-American's first title that March was Robin Hood and Company, a tabloid-sized publication which reprinted comic strips, chief amongst them Robin Hood and Company by Toronto Telegram's Ted McCall, which had run in Canadian newspapers since 1935.
From Wikipedia’s article on Anglo-American Publishing, shared under CC BY-SA 4.0.3