Hi,
Researching people who served during WW2 is a complete nightmare because of the information act (something like that) which protects peoples information for so many years. This means to obtain the service records of ex servicemen you will need to meet a strict application criteria and if you don't then forget even attempting to apply.
check out this site for further details:
http://www.veterans-uk.infoIf you click on links and then service records (explains in detail including cost if applicable)
I've no idea where the Canadian service records are kept but maybe someone else could offer help.
Good luck
Adrian