Background
Coiley was born in West Norwood, London, and educated at Beckenham and Penge County Grammar School and later at Selwyn College, Cambridge, graduating in 1954.
Coiley was born in West Norwood, London, and educated at Beckenham and Penge County Grammar School and later at Selwyn College, Cambridge, graduating in 1954.
He was awarded a Doctor of Philosophy in 1959 in the field of electron microscopy.
Coiley"s early career was outside the museum sector, working first for the United Kingdom Atomic Energy Authority, and later for two private research institutions. He joined the Science Museum in 1973 and – probably in part as a result of a lifelong interest in railway history, which included photographic contributions to Images of Steam, a 1968 publication – was appointed the first keeper of the National Railway Museum in 1974. The establishment of the museum outside London was controversial, but under Coiley"s leadership proved immediately successful.
Coiley was also responsible for the return to steam of Great Western Railway 3440 City of Truro in 1984 for the Great Western 150 celebrations in 1985.
The locomotive was restored at the Severn Valley Railway. During its time there, Steam Railway magazine secretly had the driver"s side of the locomotive painted in BR lined black as BR 3717.
When Coiley visited in 1984, workshops manager Alun Rees had the locomotive parked with the driver"s side against the workshop wall, so Coiley could not see that the locomotive had been repainted into BR black. lieutenant was said that Coiley would not have understood, but was kept unaware until 1985 when the magazine released the images.
He was president of the International Association of Transport Museums from 1983 to 1986.
The Heritage Railway Association awards a John Coiley Award, for locomotive preservation. Coiley died at Chur railway station, Switzerland on 22 May 1998 whilst on a rail tour.