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Charles Denroche ( -1855)
1840 Charles Denroche of Westminster, studying to be a civil engineer, became a member of the Institution of Civil Engineers.
1856 Obituary 
MR. CHARLES DENROCHE commenced his professional career under Mr. Alexander Gordon, (M. Inst. C.E.,) to whom he was articled as a pupil, and by whom he was employed on several important works.
He subsequently settled at Swansea as a Contractor, and among other occupations, he took an active part in the discussions relative to the sewerage of that town, contributing materially to the overthrow of the attempted introduction of the small-pipe system. His co-operation was highly valued by Mr. Vachell and the other authorities, who were opposed to that meditated innovation.
His decease, which occurred rather suddenly on the 21st of April, 1855, was deeply regretted by a large circle of friends.
He joined the Institution as an Associate, on the 31st of March, 1840, and he contributed a Paper to the proceedings of the Society.