
Markham, Clements R. A Naval Career During the old War: Being a Narrative of the Life of Admiral John Markham, M.P. for Portsmouth for Twenty-three Years (lord of the Admiralty, 1801-4 and 1806-7)

Lord Hayes, William G. Markham John The Resources of the United States for Sheep Husbandry and the Wool Manufacture

Thorp, John T B 1849 The Early History (1803-1859) of the "Knights of Malta" Lodge, Hinckley, (Leicestershire)