Professional and personal papers containing correspondence, manuscripts (chiefly typescript versions, many with holograph corrections), documents, photographs, memorabilia, newspapers clippings, printed materials, and some art work. The letters cover his professional, personal and family life. Among the significant correspondents are Orvil E. Dryfoos, James B. Reston and the Sulzberger family. The majority of the papers consist of Alden's manuscripts for his articles and editorials written for the "New York Times." There are some articles that were submitted to various magazines, as well as copy under the pseudonym, Carlton (Tubby) Belmont, written for the Women's news Service. Alden's "Times" writings deal with the New York metropolitan area, the 1963-64 World's Fair, France, Cuba, Southeast Asia, Ships, and the United Nations. In addition there are manuscripts of his stories, novels and poetry. The stories and novels deal with reporters, politics, war and show business. Alden's personal papers and documents relate to his years at City College and in the Army and contain other personal items. Also included is a typescript copy of his autobiography. The newspaper clippings and printed matrerials are mostly of his writings. There are numerous photographs as well as more than one box of memorabilia.