List of sources:
Addresses and papers read at the joint meeting of the British and South African Associations for the Advancement of Science held in South Africa, 1905 (Vol. 3). Johannesburg: SAAAS, 1906.
Geological Society of South Africa. Transactions, 1903, Vol. 6 and 1906, Vol. 10: Lists of members.
Goodwin, A.J.H. A commentary upon South African prehistory up to the introduction of the new terminology. Bantu Studies, 1935, Vol. 9, pp. 291-333; bibliography pp. 387-413.
Hall, A.L. A bibliography of South African geology to the end of 1920. Pretoria: Geological Survey, Memoir No. 18, 1922.
Journal of the Chemical, Metallurgical and Mining Society of South Africa, 1904/5, Vol. 5, Members.
Mendelssohn, S. South African bibliography. London, 1910.
Mitchell, P. [Biographical data on collectors who contributed archaeological material to the Pitt Rivers Museum, Oxford.] Personal communication, 17 April 2004.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Johnson, James Paul / Johnson, J.P.
National Archives Repository (TAB), Source MHG, Vol. 0, Ref. 36845: death notice, James Paul Johnson.
National Union Catalogue, pre-1956 imprints. London: Mansell, 1968-1980.
Noteworthy naturalists:
James Paul Johnson. The Essex Field Club.
Retrieved from http://www.essexfieldclub.org.uk/portal/p/Noteworthy naturalist/s/26
on 2018-2-20.
Obituary notices: The late Mr J.P. Johnson (by R.B. Young). Proceedings of the Geological Society of South Africa, 1919, Vol. 22, pp. xix-xx.
Powell, John. Personal communications, 2018-2-20 and 2018-2-23.
Royal Society of London. Catalogue of scientific papers. London: Royal Society, 1867-1925.
South African Association for the Advancement of Science. Report, 1903, 1904, 1905/6.
South African Philosophical Society. Transactions, 1906, Vol. 16, list of members.
South African bibliography to the year 1925. London: Mansell, 1979.