A series of lectures given at the Library of Congress in Washington, D.C.An online collection of early educational public radio content from the National Association of Educational Broadcasters (NAEB).
https://www.unlockingtheairwaves.org/programs/library-of-congress-lectures/
Allen Nevins, part one
This program, the first of two parts, presents American historian Allen Nevins, on the writing of history. Introduction by Librarian of Congress L. Quincy Mumford.