The comic strips were published until the 1920s. An American manufacturer of children’s shoes licensed the Buster Brown and Mary Jane names for a popular line of children’s footwear and Mary Janes have come to refer to girls’ strapped shoe with a low heel. [http://www.britannica.com/EBchecked/topic/81484/Buster-Brown]
Although Mary Janes are synonymous with shoes for girls, men have actually worn these designs throughout history - take for example Henry Vlll (see image below) and some French kings: Francis l of France and Charles lX of France [http://en.wikipedia.org/wiki/Mary_Jane_(shoe)].
So, grab a slice of history and crochet yourself a pair of pretty Mary Janes and walk like a princess!