•
Thomas Seaton Scott 1872–1881 •
Thomas Fuller 1881–1896 •
David Ewart 1896–1914 •
Edgar Lewis Horwood 1915–1917 •
Richard Cotsman Wright 1918–1927 •
Thomas W. Fuller 1927–1936 •
Charles D. Sutherland 1936–1947 •
Joseph Charles Gustave Brault 1947–1952 •
Edwin Alexander Gardner 1952–1963 •
James Alfred Langford 1963–1975
Frederick Preston Rubidge was a lead government architect for many projects prior to the formation of the title, first for the
Province of Canada beginning in 1841, then with the federal Department of Public Works from 1867 to 1872. ==References==