From 1872 to 1874 , he was president of the Montreal Board of Trade ; he also represented the Board of Trade on the Montreal Harbour Commission .
McLennan was also president of the International Coal Company Ltd and the Black Diamond Steamship Company .
From 1872 to 1874 , McLennan was president of the Montreal Board of Trade ; McLennan also represented the Board of Trade on the Montreal Harbour Commission .
McLennan was also president of the International Coal Company Ltd and the Black Diamond Steamship Company .