List of sources:
Argus annual and Cape of Good Hope directory, 1888, p. 396: Grahamstown Natural History Society.
Cape of Good Hope. Report of the committee of the Albany Museum, 1886, 1899.
Grahamstown Journal. 10 December 1884, p. 3; 19 November 1885, p. 3; 1 March 1886, p. 3; 23 May 1887, p. 3: Grahamstown Natural History Society.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Guest, Reginald Steward / Guest, Lucy Edith.
South African bibliography to the year 1925. London: Mansell, 1979.