1. Haste, post, haste: postmen and post routes through the ages;Walker,1938
2. The history of the Post Office;Joyce,1893
3. England's postal history to 1840;Willcocks,1975
4. British Library Department of Manuscripts (hereafter BL) Lansdowne MS 78, 92 Orders set forth in Queen Mary's time
5. The British Post Office: a history;Robinson,1948