List of sources:
Codd, L.E. & Gunn, M. Additional biographical notes on plant collectors in southern Africa. Bothalia, 1985, Vol. 15, pp. 631-654.
FamilySearch: Julius Wilhelm Keit. https://www.familysearch.org/tree/person/details/GCNW-K79
General directory and guide book to the Cape of Good Hope..., 1874-1877.
Gunn, M. & Codd, L.E. Botanical exploration of southern Africa. Cape Town: Balkema, 1981.
McCracken, D.P. William Keit and the Durban Botanic Garden. Bothalia, 1986, Vol. 16, pp. 71-75.
McCracken, D.P. A new history of the Durban Botanic Gardens. Durban: Parks Department, 1996.
McCracken, D.P. & McCracken, P.A. Natal, the Garden Colony. Sandton: Fransden, 1990.
Natal almanac, directory, and yearly register, 1881, 1882.
Pietermaritzburg Archives Repository, Vol. NPP 115: Government Notice No. 132, 1876, on the Natal Botanic Gardens, Durban (Annual Report for 1875).
Schrire, B.D. Centenary of the Natal Herbarium, Durban, 1882-1982. Bothalia, 1983, Vol. 14(2), pp. 223-236.
Strey, R.G. The second curator of the Botanic Gardens, Durban, arrived 100 years ago. Natal Wildlife, August 1972, p. 18.