After serving on the staff of the Lancashire County Asylum at Prestwich, he joined in May 1915 the RAMC and was sent to France, where the explosion of a heavy gun caused him to have tinnitus for the remainder of his life.
He introduced new standards of medical and nursing care and established regimens of training and treatment that were advanced for the era of the 1920s.
His clinical and necropsy reports were extremely thorough and detailed, so much so that his numerous published articles consisted largely of direct quotations from his routine hospital notes.
[3] Leavesden, which admitted adults with the lowest grade mental sub-normality, provided ample material for his researches into the histo-pathology of carbon-monoxide poisoning that led to what was to be known as the ‘Stewart-Morel syndrome' (J. Neurol.
He gave in 1947 the Morison lecture on Infantile Cerebral Hemiplegia to the Royal College of Physicians, Edinburgh.