Jordan,
Excellent! My first thought when seeing the red square, white and yellow....was the 1st Canadian Corps Formation sign....but that wouldn't match up with the red/green AoS, so 1st Canadian Infantry does indeed sound more logical.
Have you checked the panel under the front armour/grille to see if there are any additional markings? Also the plate on the rear axle?
Awesome work.....always great to find back some of the history of a vehicle....and armed with census number and unit, you might be able to find out more!
Attached are two random Otter pics taken in Holland, 1945.
"fast" Otter is Utrecht, 3rd Infantry Division, source:
https://hetutrechtsarchief.nl/
"decapitated" Otter is Rotterdam, 1st Infantry Division, source:
https://collecties.stadsarchief.rotterdam.nl
Alex
