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Arthur Henry Hernu (1859-1933)
1859 Born in Dieppe the son of Arthur Fortune Joseph Hernu and his wife Ellen Jane Chapman
1934 Obituary 
ARTHUR HENRY HERNU was for many years associated with the consulting engineering business of his cousin, the late Mr. Henry Chapman, M.I.Mech.E., and eventually took over the management of the engineering side of the firm in London, while he retained a close connexion with continental engineers and works through the Paris branch.
He was born in Dieppe, but came to England and commenced in 1876 a five years' apprenticeship at the Crewe works of the London and North Western Railway under the late Mr. F. W. Webb, M.I.Mech.E. From 1881 to 1883 he was employed in the drawing office at Crewe.
After a short period in London as a draughtsman on the staff of Engineering he joined his cousin's firm and later became manager. On Mr. Chapman's death in 1908, Mr. Hernu succeeded to the business, but soon afterwards relinquished professional engineering, although he remained a director of Messrs. Luxfer, structural lighting engineers, until his death. For about twenty years he was the organizing secretary of the annual dinner and re-union of those Who had served their apprenticeship at Crewe.
Mr. Hernu had been a Member of the Institution for forty-nine years, having been elected in 1884.
His death occurred on 13th August 1933.