The Somerset & Dorset Railway, known as the S&D (said to also stand for 'Slow and Dirty' or 'Serene and Delightful'), ran from Bath across the Mendip hills to Bournemouth on the south coast. Never a high-speed line, the main traffic for the Somerset & Dorset during the winter months was freight and local passenger traffic. In the summer, however, there was heavy traffic as Saturday holiday services from the northern industrial towns passed along the line. In 1962, John Betjeman travelled along the Somerset & Dorset from Evercreech Junction to Highbridge and Burnham-on-Sea, making a BBC...