Born in Nottingham, the son of Henry Jalland, and studied at Guy's Hospital, where he was House Surgeon and Resident Obstetric Assistant. After that he settled in practice in York, in partnership with William Dalla Husband (qv), later with Dr Evelyn. In 1879 Jalland was elected Surgeon to the York County Hospital, and held office until 1914, when he became Consulting Surgeon. As an active member of the House Committee he initiated many improvements in the hospital, including the erection of a Children's Ward with open-air balcony, and an Eye Ward. Following his partner Husband, he became an active member of the British Medical Association, was President of the Yorkshire Branch in 1894, and Vice-President of the Section of Surgery at the Sheffield Meeting in 1908. He was Surgeon to the 1st Volunteer Battalion, West Yorkshire Regiment, for seventeen years, retiring with the rank of Surgeon Major. He attended Albert Victor, Duke of Clarence and Avondale (1864-1892), when serving in his Cavalry Regiment at York. During the War (1914-1918) he devoted himself to ambulance work and served at the Military Hospital, Hapby Road, York, as Surgeon. He was of a tall, commanding figure, and cheerful, helpful personality. He was Medical Officer to the Royal School of St Peter's, York; an active member and twice President of the York Medical Society; JP for the North Riding; Deputy-Lieutenant, West Riding; Sheriff of York, 1896; Knight of Grace of the Order of St John of Jerusalem in England; President and Examiner of the York Centre, St John Ambulance Association; an important member and Vice-President of the Medical Defence Union; and Medical Officer of several assurance societies. He died after a long illness at St Leonard's House on February 7th, 1918, survived by his widow, a son, and a daughter. He left over £65,000 in property. One son, a lieutenant in the East Yorkshire Regiment, was reported killed at the Suvla Bay landing.