Correspondence, manuscripts, reports, slides, records, film and card files, and scrapbooks. The papers reflect Lindsay's various activities and are arranged in two sequences, an alphabetical name file and an alphabetical subject file. Since many of the subjects are closely related, the division between them is not always very sharp. Among the subjects covered are: social legislation, I.L.O., National Child Labor Committee, prohibition, labor, Republican National Committee, Institute for Social Research, League of Nations, humane legislation, housing, Harmon Foundation, Educational Radio Corporation, and the Bergh Foundation. Boxes 167-169 contain the files of the Committee for Industrial Relations, 1912-1914

Correspondence, manuscripts, and notes. This collection contains the manuscripts for most of his books and articles. There are also copies of his many book reviews and articles by other authors analyzing the impact of his interpretations of American history. The correspondents include: H.S. Commager, C. Vann Woodward, Stuart Bruchey, S.E. Morison, Clarence Ver Steeg, Alfred A. Knopf, Helen Frankenthaler, Arthur Schlesinger, Jr., and others. There are also 70 books from his library

Correspondence, both personal and relating to social and political movements of 1926-1953, unpublished manuscripts on economic and political subjects, an unfinished manuscript on Fanny Wright with notes for the completion of the book, a manuscript outline for a projected book - "Towards Understanding America.", the manuscript of an F.B.I. investigation of the early years of Communism in America. Also included are pamphlets, magazine articles, and books, 1914-1919 by Louis C. Fraina and 1926-1953 by Lewis Corey.