Analysis of information sources in references of the Wikipedia article "HMHS Llandovery Castle" in English language version.
MacDonald went overseas January, 1915, unattached, with the rank of Major. He was first attached to the Canadian Convalescent Hospital at Bearwood Park. From there he went to Bath, thence to Moore Barracks Hospital, and was later appointed Medical Examiner of the Pension Board, London. He went to France as Medical Officer of a Labor Battalion. He was promoted to the rank of Lieutenant-Colonel and received the appointment of Commanding Officer of the medical personnel of the Hospital Ship Landovery Castle. Lieutenant-Colonel Macdonald was drowned.