Hugh Vallance (1866-1947) was born in Hamilton, ON, where, in 1883, he apprenticed in the office of Charles W. Mulligan. Vallance studied and worked in Paris, and later, from 1900 to 1907 he worked for the firm of Hartwell, Richardson and Driver in Boston. In 1907 Vallance moved to Montreal and formed a partnership with David Robertson Brown (1869-1946). Ernest Isbell Barott (1884-1966) was born in Canastota, NY, and studied architecture from 1902 to 1905 at Syracuse University. Later he apprenticed at the New York office of McKim, Mead and White. Gordon Home Blackader (1885-1916) was born in Montreal and studied both at McGill University and at the Atelier Laloux in Paris, which was affiliated with the Ecole des Beaux-Arts de Paris. In 1908 he worked at the offices of McKim, Mead and White. In 1912 Blackader formed a partnership with Barott and Daniel T. Webster. Blackader died in the First World War, but his name remained as one of Barott's partners. The Blackader-Lauterman Library of McGill University was set up as his memorial.

Hugh Vallance (1866-1947) est né à Hamilton (Ontario) où, en 1883, il est devenu apprenti au cabinet de Charles W. Mulligan. Vallance a étudié à Paris et, plus tard, de 1900 à 1907, il a travaillé pour le cabinet de Hartwell, Richardson et Driver à Boston. En 1907, Vallance s'est installé à Montréal et s'est associé à David Robertson Brown (1869-1946). Ernest Isbell Barott (1884-1966) est né à Canastota (New York) et a étudié l'architecture de 1902 à 1905 à l'Université de Syracuse. Plus tard, il a été apprenti au cabinet de McKim, Mead et White de New York. Gordon Home Blackader (1885-1916) est né à Montréal et a étudié à l'Université McGill ainsi qu'à l'Atelier Laloux à Paris, affilié à l'École des Beaux Arts. En 1908, il a travaillé au cabinet de McKim, Mead et White. En 1912, Blackader s'est associé à Barott et à Daniel T. Webster. Blackader est mort au cours de la Première Guerre mondiale, mais son nom est resté parmi ceux des associés de Barott. La bibliothèque Blackader-Lauterman de l'Université McGill fut créée à sa mémoire.