<p>THIS IS THE FIRST FULL-LENGTH BIOGRAPHY OF THE GREAT RAILWAY ENGINEER WILLIAM DARGAN (1799-1867), WHO CHANGED THE FACE OF NINETEENTH-CENTURY IRELAND. The son of a County Carlow farmer, he began his career in Wales on the Holyhead Road, working under the famous Scottish engineer, Thomas Telford. He went on to build roads, railways, canals and reservoirs, developing hotels and the resort towns of Bray and Portrush, and laying out Belfast port. I...