Dux

(dooks), Claire, b. Witkowicz, Poland, Aug. 2, 1885; soprano; studied voice with Teresa Arkel, also in Milan; début, Cologne, 1906; sang with Berlin Op., 1911-18; Stockholm Op., 1918-21; Chicago Op., 1921-23; also at Covent Garden, and widely as concert performer in Europe and U.'S.; m. Charles H. Swift; res. in Chicago since 1926, with occasional appearances.