Andy T. Wallis was educated at Simon Balle School, Hertford before joining the Royal Navy, where he served for six years, some of which was spent on HMS Ark Royal. Now self-employed he is a volunteer on the Colne Valley Railway, a heritage steam railway, and has been a member of the preservation society since 1978. He has held various posts within the organization as Honorary Secretary, Editor of the newsletter and for the last 8 years as Chairman. Andy also runs a website which provides new copies of old signal box diagrams for stations in East Anglia. He lives in Bishop's Stortford, Hertfordshire.