found: New York times (online), viewed Apr. 15, 2013 (in obituary published Apr. 12: Maria Tallchief; b. Elizabeth Marie Tall Chief, Jan. 24, 1925, Fairfax, Okla.; joined her surnames when she began dancing professionally; Agnes de Mille suggested that she make Maria Tallchief her professional name; m. George Balanchine, 1946 (div. 1950); m. Elmourza Natirboff, 1952 (div. 1954); m. Henry Paschen, 1956; d. Thursday [Apr. 11, 2013], Chicago, aged 88; daughter of an Oklahoma oil family who grew up on an Indian reservation, found her way to New York, and became one of the most brilliant American ballerinas of the 20th century)