| Clem. W. Till | 19 Jan 1920 |
| Joseph. H. Brown | 12 Apr 1920 |
| Henry J. Franklin | 11 Nov 1920 |
| Albert E. McHugh | 4 Apr 1921 |
| John Murphy | 8 Oct 1923 |
| Felix D. Kuss | 4 Feb 1924 |
| Hartley K. Pitman | 24 May 1955 |
| George W. Milne | 9 Sep 1958 |
| Gordon W. Pearse | 1 Jan 1968 |
| David L. Young | 1 Jan 1972 |
| B. E. Whitehead | 29 Jan 1987 |
| Lindsay S. Strong | 1 Feb 1988 |
.
