Additional Blitzstein material is held by the New York Public Library, in the Federal Theatre Project Archive at George Mason College in Fairfax, Virginia, and at the National Archives (Collection 69, correspondence file). A small collection of sheet music of several of Blitzstein's earliest works (all which are present in this collection) is located at the Edwin A. Fleisher Collection of Orchestral Music, Free Library of Philadelphia, Philadelphia, Pennsylvania. Researchers interested in Another Part of the Forest and Toys in the Attic should also consult the Wisconsin Historical Society's-WCFTR's Kermit Bloomgarden collection.
