Alexander Mitchell (1780 - 1868):
Alexander Mitchell was born in Dublin and became blind when he was twenty-two years old. He moved to Belfast, where he became a brick-maker, and he invented machines used in that trade. He is best known for his invention the 'screw pile', which allowed lighthouses to be erected on mud banks and shifting sands. It is used with great success internationally, from the Portland Breakwater to the bridges of Bombay. In 1837 he became an associate and in 1848 a member of the Institute of Civil Engineers, who awarded him the Telford Medal for his invention. He died in Belfast. [Memoir by F. J. Bigger].
||13 April 1780
||25 June 1868