Katz, E. Film ency., c1979 p. 786 (Massey, Ilona; b. Ilona Hajmassy in 1910 in Budapest, Hungary; d. 8/20/74; screen actress and opera performer)
Wikipedia, Aug. 30, 2019 (Ilona Massey; born Ilona Hajmássy, June 16, 1910, Budapest, Hungary; died August 20, 1974, Bethesda, Maryland; Hungarian film, stage and radio performer)