The papers of Ben F. Jensen relate primarily to his career in politics. The papers are arranged into five series: Congressional, Political, Speeches, Personal, and Non-Correspondence. Finally, there is an Index to Correspondents and a Subject Index. Each individual item is numbered and an extensive index is included. The congressional series contains correspondence, subject files, and military academy appointments. The political series is made up of correspondence and campaign materials. The speeches include not only his addresses, but also news releases and research material. The personal section consists of correspondence grouped in categories such as family, prominent figures, and office staff. The non-correspondence section contains copies of the Congressional Record. The large subject index refers to topics from: campaigns to elections; communism to civil rights; agriculture to labor laws and legislation; and the New Deal to the Republican Party. Major correspondents include Willard D. Archie, Gerald Bogan, Paul Cunningham, James I. Dolliver, Whitney Gillilland, Robert K. Goodwin, John M. Henry, Bourke B. Hickenlooper, Karl M. LeCompte, Jake More, Fred Schwengel, and Henry O. Talle. Series 6 & 7: Extensive item level subject and author indexes to the collection are listed. These items are not boxed contents. In the correspondence index, * indicates a manuscript recipient of a letter from Jensen. Other items indicate senders of letters to Jensen or other authors of manuscript items.