Complex sentence: In 1917 Koshetz married a former student and singer in his choirs Tetyana Koshetz (1892--1966) who was later to become a vocalist in the Ukrainian National Chorus, voice teacher, and after 1944 curator of the Ukrainian Cultural and Educational Centre in Winnipeg.
Split into simpler sentences: In 1917 Koshetz married a former student and singer in his choirs. His wife Tetyana Koshetz (1892--1966) was a vocalist in the Ukrainian National Chorus, voice teacher, and after 1944 curator of the Ukrainian Cultural and Educational Centre in Winnipeg.