Archival fact: the title was conferred a month before the singer's death.
In October 1952 Solomiya Krushelnytska received the title of professor at the Lysenko State Conservatory in Lviv, where she taught after the war. In 1951 she was named Honoured Artist. She died on 16 November 1952.
Source: https://uk.wikipedia.org/wiki/Крушельницька_Соломія_Амвросіївна
