Ratigan, William. Young Mister Big; : the story of Charles Thompson Harvey, the young traveling salesman who built the world's mightiest canal. [electronic resource] . — Grand Rapids, : Eerdmans,, 1955.. — 152 p. 23 cm. LCCN: 55014765 Subjects--Personal Names: Harvey, Charles Thompson, 1829-1912. Subjects--Geographic Terms: Sault Sainte Marie Canal. LC Class. No.: TC140.H3 / R3 Dewey Class. No.: 926.2