1921-22: P.E.C Honeyman

1922-24: J.A. Young

1924-25: M. Tomlinson

1925-35: W. Constable

1935-46: G.H. Clark

1946-51: H.H. Hunter

1951-53: DR A. Cleland

1953-55: J.A.S. Taylor

1955-73: Sir A.B. King

1973-78: E.C. Barclay-Smith

1978-80: A.R. Smith

1980-82: G. Innes

1982-83: E.C. Barclay-Smith

1983-87: D.B. McMillan

1987-89: I.R. Dewar

1989-91: D. Robertson

1991-93: T. Thomas

1993-94: W.G. Tweedale

1994-96: G. McLanachan

1996-98: R.J. Anderson

1998-2000: J.R. Talac

2000-02: M. MacIntosh

2002-04: J.A.C. Crawford

2004-06: R.S. Nelson

2006-07: J.D. Lambert

2007-09: J.F. McGhee

2009-13: C. Scott

2013-15: M.J. Gill

2015-17: K.M. Buchan

2017-19: R.A. Veitch

2019- 2021: A.J.G. Johnston

2021-Present : B. Jardine