The Midlothian town of Dalkeith has had an eventful history. Cromwell's officer, General Monck, was Commander in Scotland, and the government of the country was based out of Dalkeith Castle. In the seventeenth century, Dalkeith had one of Scotland's largest markets in its exceptionally broad High Street. In 1831 Dalkeith was linked to Edinburgh by a railway line that transported coal, minerals and agricultural produce. Two decades later, in 1853,...