Former Regimental Sergeants Major

2010-2023 42nd Field Artillery Regiment (Lanark & Renfrew Scottish), RCA
Chief Warrant Officer JP Thibault CD
Chief Warrant Officer DW Franken CD

1992-2019 1st Air Defence Regiment (Lanark and Renfrew Scottish), RCA

1959-1992 The Lanark and Renfrew Scottish Regiment

1946-1959 59th Light Anti-Aircraft Regiment (Lanark and Renfrew Scottish), RCA

1944-1946 The Lanark and Renfrew Scottish Regiment (Reserve)

1940-1944 2nd (Reserve) Battalion, The Lanark and Renfrew Scottish Regiment

1927-1940 The Lanark and Renfrew Scottish Regiment

1920-1927 The Lanark and Renfrew Regiment

1900-1920 42nd Lanark and Renfrew Regiment

1897-1900 42nd Lanark and Renfrew Battalion of Infantry

1866-1897 42nd Brockville Battalion of Infantry