List of sources:
FamilySearch: Frank Henry Joseph. https://www.familysearch.org/ark:/61903/3:1:3Q9M-C91L-8977-V?view=index&personArk=/ark:/61903/1:1:6CT4-27DM&action=view&cc=3732506
Malan, M. In quest of health: The South African Institute for Medical Research, 1912-1973. Johannesburg: Lowry, 1988.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Joseph, F.H.
South African Association for the Advancement of Science. Report, 1904, 1905/6, 1907.
Transvaal civil service list, 1906.
Transvaal [Colony], Colonial Secretary's Department. Report of the Government Analyst and Bacteriologist. In Annual report for the year ended 30 June 1904, pp. B33-B35.
Transvaal [Colony], Government Laboratories. Annual report, 1907/8. (National Archives, Pretoria, Vol. TKP 277).
Transvaal public service list, 1909.
Union of South Africa. Public service list, 1914.