Who Was Who in the Theatre: 1912-1976 compiled from editions originally published annually by John Parker; 1976 edition published by Gale Research Company - His correct birth name, age, and identity of his mother ascertained from UK Census of 1911, transcription viewable at https://www.familysearch.org/ark:/61903/1:1:XW94-F89 Accessed 17 April 2020
