John James Yealland was a British aviculturist and ornithologist. He helped Sir Peter Scott found the Wildfowl Trust at Slimbridge, Gloucestershire. He accompanied Gerald Durrell on his first animal collecting expedition to the British Cameroon in 1947-1948. He was Curator of Birds at London Zoo
Curator of Reptiles at the Zoological Society of London. He was awarded the Silver Medal on 16th November 1955 for outstanding services in leading expeditions to collect animals from Sierra Leone in 1948, Sierra Leone and Gold Coast in 1950, Uganda in 1952, Sierra Leone in 1954 and British Guiana in 1955
Curator of Reptiles, Anatomist and Researcher at ZSL London Zoo
Assistant Curator at ZSL London Zoo
Assistant Curator of Insects at ZSL London Zoo
Assistant Curator at ZSL London Zoo
Harold Maxwell-Lefroy was an English entomologist. He served as a Professor of Entomology at Imperial College London and as the second Imperial Entomologist to India. He left India after the death of two of his children from insect-borne diseases. He worked on applied entomology and initiated experiments on the use of chemicals to control insects. A formula he developed was utilised to save Westminster Hall from destruction by wood-boring beetles, while others were used to control lice in the trenches during the First World War. The success of his chemicals led to increased demand and the founding of Rentokil, a company for insecticide production. Maxwell-Lefroy's students included Evelyn Cheesman who took up a position at the insect house in London Zoo from 1919. He was killed while experimenting on fumigants to control insects.
Bushby was Acting Curator of the Insect House (1923), then Curator (1925)
Collector and Curator of Mammals and Birds at ZSL London Zoo from 1945 until his resignation in 1952
Museum Curator of the War Utility Exhibition