sentences:  In 1930 he was appointed as Headmaster of Cargilfield Preparatory School, and in 1937 moved on to become head of his old school, Sedbergh, where he remained until he retired in 1954.In 1913, J.H.Bruce Lockhart married (Alwine) Mona, the daughter of Henry Brougham, formerly a schoolmaster at Wellington College, and they had four sons.