RCOC 1 and 2 Detachments, England, 1940

[David_Hayward (RIP)]

Here's a poser that is driving me insane! It appears that 1 Detachment RCOC was transferred to 2 Detachment in the Canadian Mechanization Depot, Southampton, August 1940, to work on vehicle assembly lines. 1 Detachment had been involved in assembly line work since March 1940, and I hazard a guess that they were transferred to 2 Detachment when the work was building up for assembly for the 2nd Division that was about to be landed. Then in November 1940 2 Detachment was assigned to the CMD.

Can anyone advise please as to whether the RCOC 1 and 2 Detachments would have been formed from personnel technically not within 1st and 2nd Canadian Infantry Divisions, but as the RCOC were ancillary, they were practically speaking "1st" and "2nd" Division troops?