Shortround6
Major General
WW2 we did not have a united Public School system. It was piece meal.
City kids military could get Recruits with a 7th grade to HS education.
Farm boys barely a 3rd grade education.
Gee, My father, from Belfast Maine, population under 5,000 during WW II and the Biggest town in the county, graduated HIgh school (as did my mother), He went to the west coast to an "aviation school" for about a year and then to Stratford CT, where he worked at Sikorsky and Vought on the assembly lines before his deferment ran out and he joined the marines.
He wasn't a pilot. He also wasn't quite the "farm boy" you portray despite being from a rural area. His local grade school was a two room school house but the town high school was 3 story brick.
My mother (who graduated a few years after him) went to Bates College for one year after graduating from the same high school.
I think your perception of what the local education systems were like in the 30s is a bit off. My father went to night school in the 50s while working at WInchester and was only a few credits away form getting his bachelor degree, he had the associates degree, and worked as a production engineer for WInchester and Colt.
I think that Biff is right, the requirement for "college education" was not what knowledge the person may have acquired, but as a general indicator in the selection process before the army (or navy) spent thousands of dollars per pupil in instruction.