Books and papers related to his political campaigns and years in Congress, including his voting record. Research material for his books, files related to his political, economic, and social interests, material about the Voorhis School for Boys, and Voorhis family history. Includes information on co-operatives and personal and business correspondence with prominent figures. Also includes supporting books and periodicals, phonograph records used in radio broadcasts, scrapbooks, photographs, articles and speeches by Voorhis, newspaper clippings, and other artifacts.