Born on 20 September 1890 at Hereford, he was the younger son of Henry Vevers, surgeon of Hereford, and he received his early education there before entering St Thomas's Medical School in 1909. On the outbreak of war in 1914, he went to France as a dresser with the British Red Cross Society but, after being sent back to qualify in 1915, he again served as Captain RAMC throughout the war in France until 1919, qualifying for the 1914-15 Star. He served as a casualty officer at St Thomas's and in 1919 became assistant helminthologist at the London School of Tropical Medicine until 1923, having been awarded a Beit Memorial Fellowship during the years 1920-22. He was honorary parasitologist to the Zoological Society of London from 1919 to 1921 and in 1921 was a member of the Filariasis Commission to British Guiana. In 1923 he was appointed superintendent to the Zoological Society of London which post he held until his retirement in 1948, receiving the Society's silver medal in 1942. In 1947 the Zoological Society of Glasgow and the West of Scotland awarded him its gold medal and he was also an honorary member of the Zoological Societies of Philadelphia and of Ireland. When the society decided to start the collection at Whipsnade he was chief assistant to the then secretary, Sir Philip Chalmers Mitchell and he built a house for himself there as he had to do most of the field work. He paid several visits to Moscow where he succeeded in obtaining a number of rare animals and where he became a great admirer of the USSR, editing the Anglo-Soviet journal from 1939-1946. As a student at St Thomas's he became a close friend of P H Mitchiner, who later became an honorary fellow of the Zoological Society and in 1946 Vevers was elected a Fellow of the College as a member of twenty or more years standing. Vevers wrote numerous scientific papers and also childrens books on natural history, on which subject he regularly broadcast in the BBC "Children's Hour". Gardening was his means of relaxation. He died on 9 January 1970 at his home Springfield, Whipsnade, and was survived by his wife and family.