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James Lawrence Chapman (1846-1916) of the Harrow Gasworks
1917 Obituary 
JAMES LAWRENCE CHAPMAN, who died 19th December, 1916, at Royston Park, Pinner, was born at Harrow, 31st July, 1846.
After being trained as a railway engineer, he joined his father, in 1869, in the management of the Harrow Gasworks. When these works were, in 1872, sold to a company, Mr. Chapman became Engineer and Secretary, which position he held for 44 years. Mr. Chapman was connected with many other gas works and associations; he was elected an Associate of The Institution, 7th March, 1876, and transferred to the class of Members, 7th April, 1914.