List of sources:
Anhaeusser, C.R. (ed.) A century of geological endeavour in southern Africa, 1895-1995 (pp. 206-208). Johannesburg: Geological Society of South Africa, 1997.
Ritchie, W. The history of the South African College, 1829-1918. Cape Town: T. Maskew Miller, 1918.
South African Journal of Science, 1937, Vol. 34, pp. xiv-xix, Presidents and secretaries of the sections.
Transactions of the Royal Society of South Africa, 1914/5, Vol. 4 and 1918/9, Vol. 7, papers by W. von Bonde; 1917, Vol. 6, List of Fellows and members.
Union catalogue of theses and dissertations of South African universities, 1918-1984. Microfiche copy, University of South Africa.
University of the Cape of Good Hope. Calendar, 1909/10, 1912/3, 1914/5, 1917/8.