BL database, 24 July 2002 (hdg.: Kay, Sydney John)
Wikipedia, viewed 18 January 2012 (Kurt Kaiser (3 November 1906 - 24 May 1970), better known as Sydney John Kay, was a German-born composer, musician and theatre entrepreneur) http://en.wikipedia.org/wiki/Sydney_John_Kay
Papers of Sydney John Kay ANL bib. record (Composer, performer, publisher, arranger and director. Kay left Germany in 1933 and lived in Australia from 1937-1955.)
