Horne, L. T. Postal Communications of the Empire. British Empire Series, vol. v. London, 1902.
Hunt, F. Knight. The Fourth Estate: Contributions towards a History of Newspapers and of the Liberty of the Press. London, 1850.
Hurcomb, C. W. The Posts under the Tudors. The Antiquary, 1914.
Hyde, J. W. The Royal Mail: Its Curiosities and Romance. London, 1889.
The Early History of the Post in Grant and Farm. London, 1894.
Joyce, Herbert, C.B. The History of the Post Office from its Establishment down to 1836. London, 1893.
Lang, T. B. Historical Summary of the Post Office in Scotland. Edinburgh, 1856.
Lewins, W. Her Majesty's Mails. London, 1864.
Macpherson, David. Annals of Commerce. London, 1805.
Murch, Jerom. Ralph Allen, John Palmer, and the English Post Office. London, 1880.