G. Norman Hall, member of the Royal College of Veterinary Surgeons (MRCVS) was the co-author of a paper on the germination of anthrax spores in the Journal of Hygiene in 1911. Shortly thereafter, before or in 1913, he was employed on contract by the government of the Union of South Africa. In July that year he read two papers at a meeting of the Transvaal Veterinary Medical Association (as a visitor, not a member), one on contagious abortion, the other on tubercle bacilli causing tuberculosis in hogs in South Africa. The next month he left South Africa, having been released from his contract and transferred as veterinary officer to the British East African Protectorate (now Kenya).
Hall became more active as a researcher during the late nineteen-twenties and in 1928 produced a report on 'The results of milk analysis in the Uganda Protectorate'. From about 1930 he worked at the Veterinary Laboratory Vom, Northern Province, Nigeria. While there he published papers on rinderpest (1930), trypanosomiasis (1930), tuberculosis in cattle (1932), polyneuritis in fowls (1932) and intestinal coccidiosis in sheep (1933), all in northern Nigeria. He also presented his doctoral dissertation, Studies on rinderpest immunization (1933), at the University of Zurich.
The G. Normal Hall gold medal for outstanding research into animal diseases was established by George Norman Alfred Hall and has been awarded approximately every three years since 1969 by the Royal College of Veterinary Surgeons Trust. Hall was married to Mary Delorus Wilkinson, but they were divorced (in South Africa) in 1957. He was survived by his second wife, Freda Mary Hall.