Several collections of the comic were published as books: * Johnston,Gordon Al Oliver(1967). It Happened in Canada. London: Algor Features. * Johnston,Gordon(1971). Johnston's It Happened in Canada. Toronto Star Reader Service. * Johnston,Gordon(c. 1976). More It Happened in Canada. Scholastic-TAB. * Johnston,Gordon(). Still More It Happened in Canada. Scholastic-TAB. * Johnston,Gordon(1983). It Happened in Canada. Methuen. * Johnston,Gordon(). It Happened in Western Canada. Western Producer. * Johnston,Gordon(1991). It Happened in Canada. Toronto: Scholastic Canada. ISBN 0590740695.