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Cape of Good Hope. Civil service list, 1896, 1910.
Cape of Good Hope. Report on public health, 1896.
Dictionary of South African biography, Vol. 5, 1987.
Google scholar. http://scholar.google.co.za Publications by A.J. Gregory.
Laidler, P.W. & Gelfand, M. South Africa, its medical history, 1652-1898. Cape Town: Struik, 1971.
Malan, M. In quest of health: The South African Institute for Medical Research, 1912-1973 (p. 119). Johannesburg: Lowry, 1988.
Medical and Pharmacy register for the Colony of the Cape of Good Hope, 1893, 1907.
National Union Catalogue, pre-1956 imprints. London: Mansell, 1968-1980.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Gregory, Alfred John / Gregory, A.J.
South African Association for the Advancement of Science. Report, 1903, 1905/6, lists of members.
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South African Medical Journal, series 2, December 1895, Vol. 3, p. 235: list of members, Cape of Good Hope Branch of the BMA.
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