Regarding the two uniform items that you are discussing, the first is indeed a Canadian Army Jacket and they were issued from WWII until at least 1950. It seems that a large number of these Jackets as well as BD Tunics, all surplus and I believe held in war reserve, were sent to The Netherlands in the early 1950s to help provide emergency clothing to flood victoms. Here are some images from the two Cadet Jackets in my collection.
The other jacket that you discuss was indeed issued to the Army adter WWII and was a copy of the jacket used by the PCMR. My Father who served in the RCE from 1954 until 1982 remembers them being issued in the 1950s and 1960s and he refers to the jacket as a 'bone dry'. I have one of these Jackets as well as the Trousers in my collection and when I find it I will photograph it. I also have some photographs of the Jacket in use and I will post one or two in a following message.