The papers of Conger Reynolds consist of nine linear feet of manuscripts dating from 1899 to 1970. They are made up of subject files arranged chronologically within an alphabetical sequence. The papers document Reynolds" personal life and career. Along with a folder of autobiographical and biographical sketches, there are diaries, photographs, and scrapbooks shedding light on his personal life.

His multifaceted career is well represented. His early work as a journalist and educator can be found in clippings and other material from the Paris edition of the Chicago Tribune and files on the University of Iowa including information from a journalism course he taught from 1915 to 1916. There are subject files relating to his service in WWI and the intelligence section of which he was a member. Five folders of documents and clippings relate to his service in the American consulates in Halifax, Nova Scotia, and Stuttgart, Germany. As public relations director of the Standard Oil Company (Indiana) his files consist of things such as advertising budgets, organizational charts, public opinion surveys, and clippings. After his retirement from Standard Oil, he worked for the Eisenhower administration's People-to-People program. There are nearly three boxes of material relating to that project, including correspondence, publications, White House conference items, and notes from foreign trips. The papers also contain almost seven boxes of general correspondence, dating from 1899 to 1970 and including letters from Albert B. Cummins and Jay "Ding" Darling. Photographs, scrapbooks, appointment calendars, certificates, etc. make up the remainder of the collection.