Sir William Arroll, British engineer, c 1890.

Sir William Arroll (1839-1913), builder of the Forth Bridge. Undoubtedly Britain's most famous railway landmark, the Forth Railway Bridge croses the Firth of Forth near Edinburgh, and was constructed to connect the East Coast railway route between London and Aberdeen. It was designed by Sir John Fowler (1817-1898) and Sir Benjamin Baker (1840-1907), and is based on the cantilever principle. HRH The Prince of Wales (the future King Edward VII, 1841-1910) opened the bridge in 1890.