List of sources:
Anhaeusser, C.R. (ed.) A century of geological endeavour in southern Africa, 1895-1995 (p. 526, 538-539). Johannesburg: Geological Society of South Africa, 1997.
Bozzoli, G.R. Forging ahead: South Africa's pioneering engineers. Johannesburg: Witwatersrand University Press, 1997.
Chemical and Metallurgical Society of South Africa. Proceedings, 1894-1899, Vol. 1-2.
Chemical, Metallurgical and Mining Society of South Africa. Journal, 1904/5, Vol. 5, Members.
Dictionary of South African biography, Vol. 4, 1981.
Goode, R.C.J. Presidential address: The Institute - in retrospect and prospect. Journal of the South African Institute of Mining and Metallurgy, 1968, Vol. 69, pp. 25-42.
Hall, A.L. Bibliography of South African geology to the end of 1920. Pretoria: Geological Survey, Memoir No. 18, 1922.
Harger, H.S. Historical notes on the Geological Society of South Africa. Proceedings of the Geological Society of South Africa, 1939, Vol. 42, pp. lxvii-lxxv.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Joseph Story Curtis / J.S. Curtis.
National Union Catalogue, pre-1956 imprints. London: Mansell, 1968-1980.
Proceedings of the Geological Society of South Africa, 1915, Vol. 18, pp. xiii-xix: List of members.
Royal Society of London. Catalogue of scientific papers [1800-1900]. London: Royal Society, 1867-1925.
South African Association of Engineers and Architects. Proceedings, 1892-1894, Vol. 1, office bearers; 1897-1898, Vol. 4, list of members.
South African bibliography to the year 1925. London: Mansell, 1979.
South African who's who, 1917/8.