It's usually best to include some hint re dates?
Also, in my opinion, the last 100 years are the most difficult to research, as so many data repositories have a 100 year closure rule?
On that basis, you simply have to purchase the marriage certificate!

Then you will know father's names & occupations, and maybe ages of the happy couple.
Have you checked them on the 1939 National Register?
Have you looked for any Electoral Register entries?