M. Stewart Galbraith, Canadian agronomist, studied at the College of Agriculture in Ontario and was awarded the degree Bachelor of Science in Agriculture (BSA) in 1904. Early in 1904 he was appointed to the position of experimentalist in the Department of Agriculture of the Orange River Colony. Before coming to South Africa he and E.J. MacMillan* visited the St Louis Exhibition in the United States on behalf of the department.
In November 1904 Galbraith became acting farm superintendent at Grootvlei (near Brandfort) and on 1 July 1905 was appointed as the department's agronomist. He conducted some crop experiments during 1907-1908, but resigned his position at the end of 1908 to return to Canada. There he set himself up as a large-scale seed producer.