Her Majesty's Government (1846). "1846 Gauge of Railways Act". The Railways Archive. (originally published by Her Majesty's Stationery Office). Archived from the original on 20 August 2007. Retrieved 25 November 2006.
Her Majesty's Government (1840). "1840 Regulation of Railways Act". The Railways Archive. (originally published by Her Majesty's Stationery Office). Retrieved 25 November 2006.
Her Majesty's Government (1844). "1844 Regulation of Railways Act". The Railways Archive. (originally published by Her Majesty's Stationery Office). Retrieved 25 November 2006.
Her Majesty's Government (1846). "1846 Gauge of Railways Act". The Railways Archive. (originally published by Her Majesty's Stationery Office). Archived from the original on 20 August 2007. Retrieved 25 November 2006.