 Parson and Peto had long been manipulating to find a route to London independent of the Great Western Railway, a fact which naturally annoyed the GWR.After some failed Parliamentary bills for a new line from north of Oxford to London, they managed to get approval for the Buckinghamshire Junction Railway, more usually known as the Yarnton Loop, a short link between Yarnton and a junction with the London and North Western Railway's line from Oxford to Bletchley.This opened on 1 April 1854, from which time OW&WR trains ran to London Euston via Bletchley.