List of sources:
Britten, J. Some early Cape botanists and collectors. Journal of the Linnaean Society, Botany, 1920-1922, Vol. 45, pp. 29-51.
Dictionary of South African biography, Vol. 1, 1968.
Forbes, V.S. Carl Peter Thunberg. Travels at the Cape of Good Hope, 1772-1775. Cape Town: Van Riebeeck Society, Series 2, No. 17, 1986.
Godee Molsbergen, E.C. Reizen in Zuid-Afrika in de Hollandsche Tijd (Vol. 1, pp. 24-50). Den Haag: Linschoten Vereniging, 4 vols, 1916-1932.
Gunn, M. & Codd, L.E. Botanical exploration of southern Africa. Cape Town: Balkema, 1981.
Hoge, J. Personalia of the Germans at the Cape, 1652-1806. Archives Yearbook of South African History, 9th year. Cape Town: Government Printer, n.d.
Karsten, M.C. The old Company s garden at the Cape and its superintendents. Cape Town: Maskew Miller, 1951.
Lichtenstein, M.H.C. Travels in southern Africa in the years 1803, 1804, 1805 and 1806 (Vol. 2, p. 168-171). London: Colburn, 1812-1815.
MacOwan, P. Personalia of botanical collectors at the Cape. Transactions of the South African Philosophical Society, 1886, Vol. 4, pp. xxx-liii.
Mossop, E.E. The journals of Brink and Rhenius. Cape Town: Van Riebeeck Society, VRS 28, 1947.
Wittenberg, F. Johannes Andreas Auge, Gartner am Fusse des Tafelbergs. Lantern, February 1992, Vol. 41, pp. 19-21.