 In 1939, largely through his efforts, the Cape of Good Hope Nature Reserve was established.He became President of the Entomological Society of Southern Africa in 1940, served as Chairman of the newly created Fisheries Development Corporation from 1945–1951, and during this same period was a member of the Board of Governors of the South African Broadcasting Corporation.In 1950 he was elected President of the Royal Society of South Africa and from 1950–1957 he acted as Vice-chairman of the board of Trustees of the South African Museum.