Arthur Orfleur Parker graduated in medicine in the University of Manitoba in 1920, and was a house surgeon at the Winnipeg General Hospital. He specialized in orthopaedic surgery, and when he came to England he held the post of assistant surgeon at the Warwickshire Orthopaedic Hospital, Holeshill; resident surgical officer at the Royal Cripples' Hospital, Birmingham; and surgeon to the Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry. He obtained the FRCS in 1951. Parker ultimately settled in Cardiff where he became senior surgeon to the Prince of Wales Orthopaedic Hospital, and lecturer in orthopaedic surgery in the Welsh National School of Medicine. He was also Director of the Cardiff City Accident Service, and Adviser in Orthopaedics to the Welsh Regional Hospital Board. He was a Fellow of the British Orthopaedic Association, and a member of the International Orthopaedic Association. After retirement he went to live at Ogmore-by-Sea, in Glamorgan, and he died in 1968.