Charles John Harold Cooper [commonly known as C.J. Harold Cooper; and as C.J.H. Cooper] was the son of the architect Charles Bennett Cooper (c.1832-1903). He was born in Barnet, Hertfordshire, England on 19 June 1862 and studied at the Royal Academy Schools in London. He trained as an architect with his father in New Barnet, and in the offices of Sir Ernest George (1839-1922) and Harold Ainsworth Peto (1854-1933) in London. He commenced independent practice as architect in London in 1886.
Cooper was elected a member of the Art Workers Guild (AWG) in 1893. He exhibited at the Royal Academy in London between 1898-1903. He died in Wimbledon, Surrey on 15 March 1909.
Architectural projects by Cooper included three houses in the Arts and Crafts movement style in Stratton Street, London (c.1902), a stud farm and farm cottages at Henley in Hertfordshire (c.1903) and a bungalow at Selsey Bill in Sussex. He was also responsible for the decoration and furnishing of the steam yacht 'Normania'. A billiard room and a fireplace designed by Cooper are illustrated in 'The Studio Yearbook of Decorative Art' 1906 (pp.50, 102).
Directory of British Architects 1834-1914. Compiled by Antonia Brodie, et al. Volume 1: A-K. London; New York: British Architectural Library, Royal Institute of British Architects/Continuum, 2001
Gray, A. Stuart. Edwardian architecture: a biographical dictionary. London: Gerald Duckworth & Co., Ltd., 1985
'Obituary'. The Builder vol.96, 27 March 1909 p. 381