As a boy, Geoffrey Hayes was enthralled by stories of beam engines told by his two grandfathers. His father, as a new starter in a cotton mill, mopped the floor of an 1857 beam engine house every Saturday morning. A gift of Robert H. Thurston's book 'A History of the Steam Engine' intensified the interest in beam engines. Pilgrimages were made to Cornwall to see the surviving engines at he tin mines. Mr Hayes became involved professionally with the restoration of the Leicester beam engines and the Caprington Colliery engine in the Museum of Scotland, Edinburgh.