Items in this sub-series consist of materials related to the Dupont Awards dinner including photographs, ivitations, and RSVP's.

This subseries consists of iteme Riegel acquired during his international travel. Most items are from Eastern Europe, but there are a couple of items from Western Europe and a publication from Australia.

Riegel's corresepondence in this series primarily relates to those he worked and interacted with during his time with the Office of War information. One topic of particular interest to Riegel was the "Strzetelski Affair" which focused on the contested censorship of a Polish news agency and their description of troop position in the eastern front.

This subseries consists of materials related to every participant in Riegel's study of Belgium's cultural exchange program. Each person's listing has some responses to questions and occasionally some correspondence.

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.

The Public Opinion Quarterly organized its articles into specific sections. Radio was one of those sections. Items in this subseries consist primarily of correspondence about articles that would fall under the radio section of the journal.