Internet movie database, 22-02-2005---(Leona Mitchell; b. 1949, Enid, Oklahoma; African-American soprano who in 1971 won first place in a study programme sponsored by the San Francisco Opera and in 1972 made her professional début as Micaëla at the San Francisco Spring Opera Theater)

WWW VIAF, 29-07-2015---(Mitchell, Leona; b. Oct. 13, 1949, Enid, OK; soprano)