Sir John Ambrose Fleming F.R.S.

John Ambrose Fleming ( 1849 - 1945 ) with Frankland

Location of first IOP blue plaque: United Reformed Church, High Street, Lancaster

Unveiled: 25 April 2001 by Ian Ferguson and Keith Wigmore (ex-chairmen of the Branch) IOP Branch Lancashire & Cumbria joint with local branch of the Royal Society of Chemistry

John Ambrose Fleming ( 1849 - 1945 ) with Swan and Dewar

Location of 2nd IOP blue plaque: Edison Lamp Works, Ponders End, Enfield

Unveiled: 10 June 2004 by ? IOP Branch London

Location of 3rd IOP blue plaque: the Norman Lockyer Observatory, Salcombe Hill, Sidmouth, Devon

Unveiled: Saturday 27th April 2004 by Sir John Enderby, IOP President

born: 29 November 1849 in Lancaster the son of a Congregaional Minister

died: 18 April 1945 aged 95 in Sidmouth, Devon
Fleming lived in Sidmouth for some 20 years and is buried at Salcombe Regis church.

Professor of Electrical Engineering in London 1885 - 1936. He worked with Dewar on electrical resistance at low temperatures. He invented the thermionic valve, and contributed much to the development of the electric lamp and electric lighting

London Blue Plaque 9 Clifton Gardens, Maida Vale W9

Page last updated 1 November 2012