William Unwin

William Cawthorne Unwin FRS was a British civil and mechanical engineer. He is noted for his extensive work on hydraulics and engines as well as his close association with William Fairbairn. He is one of only a few men who have served as president of both the Institution of Civil Engineers and the Institution of Mechanical Engineers. Unwin served as an engineering advisor to the government during the First World War and was the first recipient of the Kelvin Gold Medal awarded by the Institution of Civil Engineers.