Mater spoke of the responsibilities of the senior officer for the breaking
up of the battalion. She is quite right Col Mac is to blame for most of it. His selection as O.C. of a battalion of the calibre that one was, was unfortunate to say the least. He had no personality and inspired dislike instead of loyalty to him. He was disliked by the officers and despised by the men. However perhaps I can say more about it another time.
(Lieut. Leslie Frost, 157th Bn. to Parents, 15 Jan 1917)
David Henry MacLaren was a militiaman with over thirty years’ experience in the 42nd and 35th Regiments. He was born on 13 December 1863 in Barrie, Canada West. In November 1915, the fifty-two year old pharmacist was selected to raise the 157th Battalion from Simcoe County. Future Ontario Premier, Leslie Frost (1895—1973) enlisted as a captain under MacLaren’s command.