More Notable Birthdays on July 21: 1952 - Robin Williams, born in Chicago, Illinois, comedian, Mork and Mindy, Awakenings 1948 - Garry Trudeau, political cartoonist, Doonesbury 1911 - Marshall McLuhan, born in Canada, writer, Medium is the Massage 1899 - Ernest Hemingway, born in Oak Park, for whom the bell tolled..., Nobel 1954