List of sources:
Dictionary of national biography to 1900. Oxford University Press, 1917.
Hall, A.L. A bibliography of South African geology to the end of 1920. Pretoria: Geological Survey, Memoir No. 18, 1922.
James Frederick Elton.
Geni, at https://www.geni.com/people/James-Elton/6000000018693107853
as on 2016-10-17.
Mendelssohn, S. South African bibliography. London, 1910.
National Union Catalogue, pre-1956 imprints. London: Mansell, 1968-1980.
Royal Society of London. Catalogue of scientific papers [1800-1900]. London: Royal Society, 1867-1925.
South African Committee for Stratigraphy (SACS). Stratigraphy of South Africa. Part 1. Lithostratigraphy... (compiled by L.E. Kent; p. 19). Pretoria: Geological Survey, Handbook 8, 1980.