English operatic manager, born in London. He studied at the Royal Academy of Music; spent some years in voice-culture, when an operation for an affection of the throat made impossible his intended career as a vocalist; in 1856 became business agent and manager of traveling companies; was assistant of E. T. Smith, and in 1861 his successor, in managing Italian opera. He opened at the Lyceum in 1861, and afterward became lessee of Her Majesty’s Theatre, London. In 1861 Adelina Patti appeared under his management. He afforded the public first productions of many great operas, and had under his management many of the greatest operatic artists of his time. His company traveled in the United States in the intervals of the London season after 1878. He published Mapleson Memoirs (1888).