Hugh Vallance (1866-1947) was born in Hamilton, ON. In 1883 he apprenticed with the Hamilton architect Charles W. Mulligan. After further architectural training in Paris, Vallance worked in Boston for the firm of Hartwill, Richardson and Driver. In 1907 Vallance moved to Montreal and set up practice in partnership with Brown. Brown and Vallance designed, among other buildings, the Children's Memorial Hospital (1907) in Montreal and the Medical Building (1910) of McGill University.

Hugh Vallance (1866-1947) est né à Hamilton (Ontario). En 1883, il a été l'apprenti de Charles W. Mulligan, architecte de Hamilton. Après une formation supplémentaire reçue à Paris, Vallance a travaillé à Boston pour le cabinet de Hartwill, Richardson et Driver. En 1907, Vallance s'est installé à Montréal et a ouvert un cabinet en s'associant avec Brown. Brown et Vallance ont dessiné, entre autres, le Children's Memorial Hospital (1907) à Montréal et le pavillon de médecine (1910) de l'Université McGill.

Hugh Allen Inglis Valentine (1904-1978) was born in Dundee, Scotland. He studied architecture at McGill University during the 1920s, graduating in 1928. During his studies at McGill he worked for the architectural firm of Ross and Macdonald. Upon graduation Valentine worked for William E. Martin in Wilmington, DE, from 1929 to 1930, and in the architectural office of the Bell Telephone Company from 1935 until 1945. From 1945 to 1950 Valentine worked in partnership with Percy Erskine Nobbs (1975-1964). He returned to Bell Telephone in 1950 in the position of chief architect. Valentine taught as a sessional lecturer at the McGill University School of Architecture from 1959 to 1967. He retired in 1970.