Journalist, poet, advocate of western expansion, and an original member of the Canada First movement, Mair was born at Lanark, Upper Canada. A controversial figure during the Red River uprising (1869-1870), he was subsequently a pioneer businessman of Portage la Prairie, Prince Albert and Kelowna, and an official of the Dominion immigration service. His literary works included Dreamland and Other Poems, Tecumseh, and Through the Mackenzie Basin. He died at Victoria, B.C.