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John Alfred Naylor (1867-1938)
1938 Obituary 
JOHN ALFRED NAYLOR was connected with Messrs. Rosser and Russell, Ltd., heating and ventilating engineers, throughout the whole of his career. He was born in London in 1867 and served his apprenticeship from 1885 to 1889 in Messrs. Rosser and Russell's Hammersmith works.
Subsequently he became a draughtsman at the firm's office at Charing Cross, and in 1892 he was made assistant manager, and superintended the installation of heating and ventilating systems in connection with several important contracts, including Olympia, Kensington, and the Great Northern Railway works, Doncaster. Mr. Naylor was appointed a director of the firm in 1900.
During the next thirty years he designed and carried out a large number of heating and ventilating contracts, including the heating and hot water supplies of the National Physical Laboratory at Teddington, Messrs. Johnson and Phillips's electric cable works at Charlton, and North Finchley Memorial Hospital. He also designed the heating system installed in Lichfield Cathedral.
Mr. Naylor's death occurred on 8th December 1937. He had been an Associate Member of the Institution since 1901.