Identity:
Gustave Hallé, son of the conductor, Charles Hallé, was a newspaper editor and government engineer.
Life:
He may have known JW in the mid-1870s.
Bibliography:
Kelly's London Post Office Directory, 1873, 1874 and 1875; Hallé, Gustave, From Mayfair to Maritzburg. Reminiscences of Eighty Years, London, 1933.