Here is something else that could help you to fill in your family history during the 1940s from the Library and Archives Canada -
"Are you looking for a Canadian ancestor or someone who was living in Canada during the Second World War?
Since most sources for that time period are still subject to access or privacy restrictions under Canadian legislation. However, it is a census records that can provide you with some answers. This very valuable source for genealogists and family historians is the result of the compulsory registration of all persons, 16 years of age or older, between 1940 and 1946.
If the person has been dead for more than 20 years, and you can provide proof of death, you can order a search of these Statistics Canada records. Please note that research fees, based on an hourly rate, apply.
If you cannot provide a copy of a death certificate, other types of documents indicating the date of death are accepted, such as obituary notices published in newspapers.
The registration included all persons who were 16 years of age or older, except for members of the armed forces and religious orders, or those confined to an institution. If a person died between 1940 and 1946, their questionnaire might have been destroyed. A different form was used for men than was used for women.
The questionnaires provide particulars such as address, age, date and place of birth, general health, and occupation. For immigrants, key details such as the year of arrival in Canada and their parents’ country of birth are given.
A similar national registration was undertaken during the First World War, in June 1918; however, those records have not survived".
Information is at http://www5.statcan.gc.ca/bsolc/olc-cel/olc-cel?lang=eng&catno=93C0006
The hourly rate is $72.68!