He started a medical school in Addis Ababa, Ethiopia. He eventually was evacuated from Ethiopia because of the Italian Invasion by Mussolini and returned to England. However, he returned to Burundi in 1938 which was then part of Ruanda-Urundi administered by Belgium through a League of Nations mandate. With very minimal resources and external funding, he built a hospital at Ibuye for the Ruanda Mission, simultaneously in charge of the surgery and medical procedures while also training nurses and other doctors. In 1954, he returned to England to work and Medical Superintendent for Mildmay Mission Hospital.