[15] Captain Thomas Hamilton, Men and Manners in America, Edinburgh and London, 1833. 2 vols.
[16] Society in America, London, 1837. 3 vols. Retrospect of Western Travel, London, 1838. 2 vols.
[17] Captain Frederick Marryat, A Diary in America, with Remarks on Its Institutions, Vol. VI, p. 293.
[18] James Silk Buckingham, America, Historical, Statistic and Descriptive, London, 1841-43. 9 vols.
[19] Notes on the United States of North America during a phrenological visit, 1838-9-40, Edinburgh, 1841. 3 vols.
[20] A Visit to the United States in 1841, London, 1842.
[21] George William Featherstonaugh, Excursion through the Slave States, London, 1844. 2 vols.
[22] William Kennedy, Texas: The Rise, Progress and Prospects of the Republic of Texas, London, 1841. 2 vols. George Warburton, Hochelaga: or, England in the New World, London, 1845. 2 vols.
[23] Warburton, Hochelaga, 5th Edition, Vol. II, pp. 363-4.
[24] Alexander Mackay, The Western World: or, Travels through the United States in 1846-47, London, 1849.