Former Sergeants Major

2011-2026 20th Independent Field Battery, RCA 
Master Warrant Officer S. English CD
Master Warrant Officer P.S. Nanton CD
2011-2017 Master Warrant Officer G.J. Wittebolle CD
1992-2011 18th Air Defence Regiment, RCA
2010-2011 Master Warrant Officer G.J. Wittebolle CD
2008-2009 Chief Warrant Officer J.R.M. Pagliericci
2002-2006 Chief Warrant Officer J.W. Alden
2001-2002 Chief Warrant Officer G.J. Schmidt
1998-2001 Chief Warrant Officer A.K. Van Andel
1994-1998 Chief Warrant Officer W.A. Campbell
1992-1994 Chief Warrant Officer A.A. Critchley
1970-1992 20th Independent Field Battery, RCA
1991-1992 Master Warrant Officer A.K. Van Andel
1990-1991 Master Warrant Officer R. Wiley
1989-1989 Master Warrant Officer R. McMinn
1989-1989 Master Warrant Officer E.L. Ferguson
1985-1989 Master Warrant Officer R.E. McKenna
1980-1985 Master Warrant Officer M. Chomiak
1978-1980 Master Warrant Officer D. Martin
1970-1978 Master Warrant Officer B. Martin
-1970 18th Field Regiment, RCA
1969-1970 Chief Warrant Officer W. Stanton
1967-1968 Warrant Officer Class 1 J. Lee
18th Field Regiment (SP), RCA
1958-1966 Warrant Officer Class 1 D. Gibson
1947-1958 Warrant Officer Class 1 W. Shirley
1947-1958 Warrant Officer Class 1 G. Mason
1947-1958 Warrant Officer Class 1 I. Greenwood
18th Field Regiment, RCA

20th Battery, 41 (Reserve) Field Regiment, RCA

18th Field Brigade, RCA

1920- 18th Field Brigade, Canadian Field Artillery

1964-1970 20th Field Battery, RCA

1947-1964 20th Field Battery (Self propelled), RCA

1946-1947 20th Field Battery, RCA

1940-1946 20th (Reserve) Field Battery, RCA

1935-1940 20th Field Battery, Canadian Artillery

1925-1935 20th Field Battery, Canadian Artillery

1920-1925 20th Field Battery, Canadian Field Artillery

78th Overseas Depot Battery, Canadian Field Artillery, CEF

39th Overseas Field Battery, Canadian Field Artillery, CEF

1914-1920 20th Overseas Field Battery, Canadian Field Artillery, CEF

1908-1920 25th Battery, Canadian Field Artillery