Cyril Winthrop Mackworth-Praed (1891-1974 ) & Claude Henry Baxter Grant (1878-1958) ; Austin Roberts (1883-1948) ; C. D. Priest: The Birds of Southern Rhodesia (Zimbabwe) ; McLachlan, Geoffrey R[oy] (1923-2005) & Richard Liversidge (1926-2003): Roberts birds of South Africa (Cape Town: Trustees of the John Voelcker Bird Book Fund, probably for all editions ongoing from the 2nd edition 1957) ;
Nissen: Zoolog. Buchillustration 1969/78 ## 2640 & 3441 ; Clancey in Bokmakierie. A popular magazine for birdwatchers / South African Ornithological Society & Witwatersrand Bird Club 36 (1) 1984: 3 ;
The Brenthurst Library in Johannesburg has a collection of his art work.
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