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

European propaganda leaflets, in Riegel's collection, show the various appeals by different groups to persuade the enemy to surrender. While most of the leaflets are addressing a German audience, there are some in Hungarian, Polish, and Arabic aiming to persuade at least a tacit support for the allies. The leaflets are sorted based on their identification number often found on one of the corners of the leaflet.

This subseries consists of materials that were issued to spread the recognition and outreach of Riegel's study in Belgium. The majority of items are press releases informing individuals how they can participate and for participants to follow through with their questionnaires.

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 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.