Cornet at Night (1963)

Educational short film, 15 min
-Year: 1963
-Year in film: 1930s
-Country: Canada
-Who in bibs: boy ~ 10, men
-Available on DVD: no ? 
-I own: no
-Bib occurrence: often
-Rating: 5/10  
-Rating: *****
-Comment: One farm boy in bibs, also riding and sitting. Several good scenes. And also a man in bibs. Story by Sinclair Ross.

Also a good bedroom scene where the boy is in bed and the bibs hanging over a chair. 

Rating ~5.

There is also a 1983 remake (probably in color), but I haven't searched for that, yet. The books also needs to be checked ("prototype of Canadian Prairie Fiction" and another movie was Oscar nominated).

Another movie from the National Film Board of Canada is

https://biboverallsfilms.blogspot.com/2021/07/high-over-borders.html

Please also note my previous post (webfinds).