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.

Publications in this part of the collection focus on the effects and status of cultural exchange programs with the United States. Items of note in this subseries include a Belgian professor's analysis of Columbia University's geology courses from the 1920s, and statements by the state department about educational exchange programs.

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.