Don Cossack Russian Male Chorus Entered from New York Times concert listing and review, program calendars, and advertisement on back of 11/8/1930 morning program. "Concerts of Week." New York Times 9 Nov. 1930: X10. Print. "Throng Cossack Concert." New York Times 10 Nov. 1930: 19. Print. choir performance 1930-11-08T20:30:00