Documents John Hay Whitney's investments in New York City theatrical productions. Includes correspondence, contracts, and financial statements from various production companies: Alcar Productions, Incorporated; Aldblack Productions, Incorporated; Almac Productions, Incorporated; Almad Productions, Incorporated; Alton Productions, Incorporated; Hay Plays, Incorporated; Jay Jay, Incorporated; Jay Jay II, Incorporated; Lorelei Productions, Incorporated; Petarco, Incorporated; Plays, Incorporated; Pike's Peak, Incorporated; Spectrum Corporation; Whitplay Corporation; and Wildcat Incorporated.