"I've heard something about a National Registration in Canada in 1940. Would my ancestors be listed and how do I get hold of the info?"Olive Tree Answer: Great question Jason! The National Registration File of 1940 is a good census substitute.
This was the registration of all people 16 years of age or olde, from 1940 to 1946. There is a great deal of information on this Registration.
Statistics Canada holds these records and for a fee they will search on your behalf. See the explanation with a link to an online order form
Questions asked on the form sent to households were:
date of birth
country of birth (persons registered and parents only)
class of occupation
occupation or craft
work experience by type
mechanical or other abilities
previous military service