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Henry Gascoyne Maurice was President of the International Council for the Exploration of the Sea 1920-1938 and President of the Zoological Society of London 1942-1948. He also headed the Fisheries Department of the Ministry of Agriculture from 1912 and was Fisheries Secretary at the Ministry of Agriculture and Fisheries from 1920 until his retirement in 1938, after which he served on the White Fish Commission from its inception in 1938 until its suspension on the outbreak of the Second World War.

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.