DAWSON, MARY CARDWELL. Opera director ( in Meridian, North Carolina; in Washington, D.C.). She obtained her musical education in the public schools of Pittsburgh, Pennsylvania, where her family moved when she was a child. Later she studied at the New England Conservatory in Boston, Massachusetts, and at Chicago Musical College. In 1927 she founded the Cardwell School of Music in Pittsburgh. She toured frequently with her Cardwell-Dawson chorus, which won prizes in choral...