J. J. O'Leary (1934-1935)
G. C. Adams (1937-
R. A. Carroll (1946-
P. E. Cavanagh (1951-1953)
Bernard Pappin (nov 1956)
Francis James Cashubec (1957-1961)
D. J. Murphy (1962-1963)
D. T. Cresswall (1963-1964)
Raymond van Berkel (1964-1967)
Normand Clément (1969-1975)
Gerald Copeman, assistant (06/1975)
Mr. Leo Sheehan, p.d. (1978-1981)
James F. Cashubec (1981-1982)
David T. Cresswell (1982-1989)