List of sources:
Google Scholar, at http://scholar.google.co.za Publications by H.R. Adams.
Hall, A.L. A bibliography of South African geology. Pretoria: Geological Survey, Memoirs No. 18 (1922), 27 (1931) and 30 (1937).
Hubbart, P. A bibliography of Zimbabwean archaeology to 2005, version 1.0, January 2007. Electronic file received from author.
Journal of the Chemical, Metallurgical and Mining Society of South Africa, 1940, Vol. 41(1), Past Presidents.
Letcher, T.M. A brief history of the Chemistry Department of the University of the Witwatersrand. Chemsa, 1976, Vol. 2, pp. 192-195.
National Archives Repository (TAB), Source MHG, Vol. 0, Ref. 577/44: Death notice, Hector Robert Adam.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Adam, Hector Robert.
Obituary [note]. Journal of the Chemical, Metallurgical and Mining Society of South Africa, 1944, Vol. 44(7 & 8), p. 93.
South African Chemical Institute. Proceedings and List of Members, 1921-1922; List of Members, 1934.
University of the Cape of Good Hope. Calendar, 1914-1915, p. 394, South African School of Mines and Technology, Johannesburg.