What musical profession does Peter Wilhousky and Shchedryk have in common?
Peter Wilhousky: Peter J. Wilhousky (Rusyn: Пітер (Петро) Вільховський ) (13 July 1902, Passaic, New Jersey – 1978) was a popular American composer, educator, and choral conductor of Carpatho-Rusyn ethnic extraction. Shchedryk (song):  It was arranged by composer and teacher Mykola Leontovych in 1916, and tells a story of a swallow flying into a household to sing of wealth that will come with the following spring.
composer