Ivor Wagner had managed both firms since 1937, although absent from the area while he served overseas in the Canadian Army during World War II. He returned to Owen Sound in January 1945 to resume his responsibility as president and general manager of both companies. Other directors included W.W. Barnard of Owen Sound, employed by OSTC since 1927, who served as vice president and manager of operations. Mr. W.W. Barnard became president of the company at the beginning of 1969; W.A. Alexander, secretary-treasurer, who had been with Dominion Transportation Company since 1924; and William Owens, chief engineer, who had a lengthy connection with both firms, beginning with his association with the S.S. "Manitou" when the ship was constructed in 1903. Mr. Owens had been chief engineer of OSTC since 1926. The two concerns remained separate entities until the last DTC vessel, the S.S. "Caribou", was sold at the end of the 1946 season.