Anderson, John (1911). "Sutherland, Earl of Sutherland". In Paul, Sir James Balfour (ed.). Peerage of Scotland : Volume VIII. Edinburgh: David Douglas. p. 361.
(Report of the Commissioners on Conditions in Factories, Parliamentary Papers, 1833, volume XX ), as given in Young, G M; Hancock, W D, eds. (1956). English Historical Documents, XII(1), 1833–1874. New York: Oxford University Press. pp. 934–949. Archived from the original on 29 March 2015. Retrieved 12 December 2014.
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(Report of the Commissioners on Conditions in Factories, Parliamentary Papers, 1833, volume XX ), as given in Young, G M; Hancock, W D, eds. (1956). English Historical Documents, XII(1), 1833–1874. New York: Oxford University Press. pp. 934–949. Archived from the original on 29 March 2015. Retrieved 12 December 2014.