Giles was educated at the Royal Grammar School Newcastle and obtained his first MB at the Durham University College of Medicine in Oct. 1913. At the age of 18 in September 1914 he joined the Northumberland Fusiliers to sign up for the war and went to France. He was called back because of the start of his medical education and the shortage of doctors. Whilst he was an undergraduate he was living at home. All his patients loved him. He qualified in 1922, the year he married Joan, the daughter of his uncle Henry Owen Hall. His brother Ronald had persuaded his father to drop his objection to Giles' marriage to a first cousin, but by that time they had both committed themselves to go to China to escape the ban. In 1922, they went to Ta Tung in North China (where their eldest son John was born in 1923) as missionaries with the Society for the Propagation of the Gospel. As Giles was particularly interested in skin and tuberculosis, in 1925 he was put in charge of these departments at the Peking Union Medical College. His second son (Michael) was born in April of that year. In 1927 (when Bridget was born) he became an MD (Durham) having written a paper on a special type of skin disease - Porokeratosis. During his time in China, he had two sabbaticals. In 1929 to the John Hopkins Hospital in Baltimore to do research on TB and in 1933 to the Pasteur institute to look into the use of BCG vaccinations. During these two sabbaticals, the family lived in England. Wadenhoe (Northamptonshire) in 1929 when Peter was born and Medenham in 1933 where Giles' brother Noel lived. Giles left China in 1937 and the family lived in Lincoln to look after his father C G Hall, while Giles looked for a job. After a long search, he acquired the goodwill of Rosehill TB sanatorium near Penzance, which he ran during the war until TB was easily cured with Streptomycin. Also during the war he took a quarter share in a small practice as a General Practitioner. When Joan became a cripple, they built a bungalow in Heamoor which they called Joales Cottage. After he retired as a GP, he became county consultant for TB in Cornwall and helped out at the West Cornwall Hospital (Penzance) in the casualty department and was frequently on call. Joan died in 1969 and he finally retired in 1970 (aged 74) and spent a great deal of his time gardening in Joales cottage. To be closer to his family, he moved in 1989 to Aldwincle (Northamptonshire) where he and Joan were married. Giles was very modest and was something special to all those who new him. He was self-effacing like his father, but a wonderful diagnostician. Perhaps too like his father, he was not recognised to his full glory.