King George II reigned 1727-1760

George Stephenson (1781-1848) Colliery and railway engineer. Made important contributions to the development of locomotives and tracks. His most famous locomotive was 'The Rocket' built for the Manchester and Liverpool Railway opened in 1830.

Reference:
Oxford Dictionary of National Biography (accessed 14Sep20)

Charles Green (1785-1870) a celebrated balloonist. 

Portrait of Charles Green by Hilaire Ledru, 1835