List of sources:
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Dictionary of South African biography, Vol. 5, 1987.
Flint, W. & Gilchrist, J.D.F. Science in South Africa. Cape Town: T. Maskew Miller, 1905.
In Memoriam: The Rev. William Flint, DD. South African Journal of Science, 1943, Vol. 40, p. xxiii.
Obituary: William Flint. Transactions of the Royal Society of South Africa, 1948, Vol. 31, p. ii.
Royal Society of South Africa. Transactions, 1908-1910, Vol. 1; and 1917, Vol. 6: Lists of members.
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South African Philosophical Society. Transactions, 1903-1907, Vol. 14, 16, 17.
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University of the Cape of Good Hope. Calendar, 1903/4-1917/8.