Constitution Hall, Washington, D.C., Lucia Chase and Oliver Smith present "Ballet Theatre," Igor Youskevitch, Hugh Laing, Janet Reed, Nicolas Orloff, Bambi Linn, Wallace Seibert, Shellie Farrell, Ernand Nault, Isabel Mirrow, Priscilla Allen, Kelly Brown, Vernon Lusby, Ralph McWilliams, Dolores Starr, Nora Kaye, John Kriza, Muriel Bentley, Paul Godkin, Ruth Ann Koesun, Mary Burr, Peter Gladke, Lillian Lanese, George Tomal, Charlyne Baker, Ruth Gilbert, Genia Melnitchenko, Liane Plane, Nana Gollner, Maria Tallchief, Diana Adams, Norma Vance, Eric Braun, Jocelyn Vollmar, Jenny Workman, Virginia Barnes, Jacqueline Dodge, Jack Beaber, Richard Goltra, Wilson Morelli, Dorothy Scott, Fernando Schaffen, with collaboration of Antony Tudor, musical director Max Goberman, regisseur Dimitri Romanoff, ballet mistress Margaret Clarke, "Swan Lake," choreographic poem in one act, music by Peter Tschaikowsky, choreography by Anton Dolin after Lev Ivanov and Marius Petipa, scenery by Lee Simonson, men's costumes by Lucinda Ballard, conductor: Max Goberman.