Maybe 0 SR took correspondence courses? How common was it back then?
Correspondence? In Kenya? If they had no higher education after high school, who was going to admininster correspondence courses?
He apparently worked as a clerk for Elizabeth Mooney and the Laubach Literacy Society.
He would have needed to find a private, full time tutor.
Frankly, I have no idea how he achieved the credentials he claimed to have when he was interviewed in Hawaii.