The Gresley Society is a charitable organisation of around 500 members dedicated to the preservation and celebration of the work of Sir Nigel Gresley, a locomotive designer and chief mechanical engineer of the London and North Eastern Railway (LNER).[1] Gresley oversaw the design and construction of 2,150 locomotives and tens of thousands of wagons and carriages.[2] One of his locomotives, the Mallard, set the steam engine speed record in 1938, which stands to this day.[3] The Gresley society received a £500,000 bequest from the estate of a member in 2012.