Frederick Thomas Granville Walton CIE, M. Inst C.E., Telford Medal, (1840-1925) was a British railway engineer in India. He specialised in bridge construction. He was commonly known by his middle name Granville, and was often referred to as Mr F.T.G. Walton. Walton was born in September 1840 in Hampton, Middlesex, England to William Walton (1795–1889) of Reading, Berkshire and Elizabeth Louisa Plunkett (1801–1866) originally of Dalston, Cumberland.[1]