Riegel's correspondence in this series is primarily between different awards administrators and judges. Riegel corresponded with approximately 320 different individauls within this subseries. Correspondents of note include Mrs. Dupont, Turner Catledge, and Sol Taishoff.

Riegel's items from the Federal Communications Commission primarily relate to its reports on radio broadcasts. Included in their reports are recommendations for foreign radio propaganda, and their prioritization of national defence in their own decisions.

Items in this subseries consist of letters between Riegel and over 550 correspondents related to Washington and Lee's Journalism program. Letters range in theme from inquiries about the program, job openings for journalism graudates, the Associated Press, the British Library, the American Association of Schools with Departments in Journalism, and others.

Items in this series pertain to Riegel's personal correspondence between himself and colleagues, friends, and family. Some material is related to or mentions his work, but the majority of the material is about his or other people's personal lives, opinions, and thoughts around world events.