1st Canadian Air Support Signals Unit

[Carruthers]

Does anyone have info about this unit? There seems to be no info available on them. They used Chev 15 cwt trucks with signals body and No9 sets made by RCA. They operated with 2nd Army through Holland and up into the Baltic 44-45. There were two units in 2nd Army: 1st Canadian and 2nd British ASSU. My Dad was in the later. Brits used Morris C4 W/T 15 cwt. Dirk Leegwater has a Chev of the same type but info on the actual unit is sketchy. Royal Signals museum have NO info!

Any info appreciated.
Simon