Collection contains watercolor renderings, sketches, technical drawings (ground plans, elevations and details), photographs, glass plate and acetate negatives, scrapbooks, set models and some related papers covering Urban's career in Vienna and New York as an architect, set designer, decorator and illustrator. There is a thorough representation of his New York career including his set designs for Florenz Ziegfeld (1915-1932) and the Metropolitan Opera (1917-1933). The collection also contains information on Urban's work for William Randolph Hearst as art director for Cosmopolitan Studios, his exhibitions including his 1921 Wiener Werkstätte store, and his many architectural projects. Biographical information and research gathered by Richard Cole and Randolph Carter including contributions from his daughter,Gretl Urban, and biographical notes and some letters from his widow, Mary Urban, are also present.

Correspondence, manuscripts, playscripts, screenplays, diaries, documents, contracts, financial records, photographs, phonograph records, motion pictures, playbills, posters, sheet music, cartoons, art work, memorabilia, scrapbooks, and printed materials. . The collection consists chiefly of correspondence and production files relating to the creation, production, and performance of their works for stage, screen, radio, and television, such as Leave It To Me and Kiss Me Kate (with music by Cole Porter), Boy Meets Girl, and My Three Angels. Correspondence (with twentieth century authors, playwrights, musicians, political figures, and actors) includes: George Abbott, Jean Arthur, Bennett Cerf, Katharine Cornell, Jo Davidson, George and Ira Gershwin, Alec Guinness, W. Averell Harriman, Lilli Lehmann, Mary Martin, Laurence Olivier, Mary Pickford, Cole Porter, Regina Resnick, Eleanor Roosevelt, Robert E. Sherwood, Lincoln Steffens, Kurt Weill, Rebecca West, and Thornton Wilder. There is also correspondence concerning Bella Spewack's work with the New York Girls' Scholarship, UNRA, and the Sports Center of Israel. In addition to the production files, there are manuscripts and typescript drafts for novels, short stories, and articles by the Spewacks.

Correspondence, manuscripts, documents, photographs, artwork, objects, and printed material. Included among the list of 37 cataloged correspondents are: Vera Brittain, Edward Gordon Craig, Clarence Darrow, Havelock Ellis, Augustus John, Emmeline Pankhurst, Edward Steichen, Gertrude Stein, Algernon Charles Swinburne, Sybil Thorndike, Alec Waugh, and H. G. Wells. The cataloged manuscripts include a poem by Witter Bynner entitled "Hay Wagon." There is a large selection of Stephen's writings (poetry, novels, plays, articles, biographies, memoirs) including drafts of a proposed biography of his father, a bound volume of his own memoirs, numerous notebooks, and "Mount Joy," a description of life on Dominica. His photographs and paintings are well represented, with 6 albums of photographs and 2 boxes & 1 folder of approximately 200 paintings and sketches. The printed material includes works by Stephen, his father and his mother.