Education
He was appointed mathematical examiner at Trinity House, and in 1813 had the degree of Doctor of Laws conferred on him by the University of Glasgow.
He was appointed mathematical examiner at Trinity House, and in 1813 had the degree of Doctor of Laws conferred on him by the University of Glasgow.
Kelly was Master of the Finsbury Square Academy, London. He was also instrumental in the establishment of the Imperial system of measurement through the Weights and Measures Acting 1824. He was for many years master of a successful private school, the Mercantile School, in Finsbury Square, London.
Kelly knew Nevil Maskelyne, John Herschel, James Hutton, and other men of science.
He was consulted by committees of the House of Commons as an authority on questions of coinage and currency. He died at Brighton, 5 April 1842.
A portrait of him by Harry Ashby was engraved by Thomas Woolnoth.