Sydney T.A. Amos qualified as a member of the Royal College of Veterinary Surgeons (MRCVS, London) in 1897 and came to Natal as one of a party of eight veterinarians appointed by the Natal Civil Veterinary Department to combat rinderpest. His formal appointment as District Veterinary Surgeon occurred on 19 September 1897. He saw active service in the Anglo-Boer War (1899-1902) and in the 1906 Zulu rebellion. From September 1901 to 1906 he served as District Veterinary Surgeon in Durban. He did not publish much, but an article by him on "Epizootic lymphangitis" appeared in the Natal Agricultural Journal (Vol. 8, pp. 993-996) in 1905. In 1909 he took his FRCVS with a thesis entitled East Coast Fever. After resigning his post he practiced in Durban. He was a member of the Transvaal Veterinary Medical Association from 1908, a foundation member of the Natal Veterinary Medical Association in 1909, and served his profession as president of the South African Veterinary Association for a record nine consecutive years from 1936 to 1945. During World War I (1914-1918) he saw service in the South West Africa Campaign, returning afterwards to practice in Durban until his retirement in 1947. In 1902 he married Jane A. Martin, which led to another record: both his daughter and son-in-law, as well as two grandsons, became veterinarians!