Lefroy, John Henry. Toronto: Macmillan Company of Canada, 1955.
1843-44 British Surveying Expedition for Magnetic North.
Arctic Reading: Canada
p. xi, re an English soldier-scientist and surveyer assigned to Toronto: …with an English gentlemen’s sincere belief in the inevitable superiority of things English….. He loved his Church; and his interest in missionary work never diminished throughout a career which lasted seventy-eight years.