Ross and Macdonald was one of
Canada's most notable
architecture firms in the early 20th century. Based in
Montreal,
Quebec, the firm originally operated as a partnership between George Allen Ross and David MacFarlane ("Ross and MacFarlane") from 1907 to 1912. MacFarlane retired in 1913, and Robert Henry Macdonald became a partner. The Ross and Macdonald name was used until 1944.