[1] His elder brother was the chemist Augustus George Vernon Harcourt.
[1] His daughter, Evelyn Alice, married the writer Arthur Clutton-Brock in 1903.
He was a pioneer in the use of scale models to predict the impact of man made structures in tidal waters, and was an active contributor to the Institution of Civil Engineers, and the author of several books on civil engineering.
[6] His career included acting as resident engineer for an extension to the West India Docks, London under John Hawkshaw, during the 1860s;[7] superintendent of works at Braye Harbour, and construction of a pier at Rosslare.
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