Rack, Henry D. "Wesley , John (1703–1791)." Oxford Dictionary of National Biography. Ed. H. C. G. Matthew and Brian Harrison. Oxford: OUP, 2004. Online ed. Ed. Lawrence Goldman. May 2009.
Reid, Hugh. "Warton, Thomas (1728–1790)." Oxford Dictionary of National Biography. Ed. H. C. G. Matthew and Brian Harrison. Oxford: OUP, 2004. Online ed. Ed. Lawrence Goldman. May 2006.
The standard edition of Johnson’s verse is the sixth volume of the Yale Edition of the Works of Samuel Johnson: Poems, ed. E. L. McAdam, Jr., and George Milne (New Haven and London: Yale UP, 1964).
Quehen, Hugh de. “Butler, Samuel (bap. 1613, d. 1680).” Oxford Dictionary of National Biography. Ed. H. C. G. Matthew and Brian Harrison. Oxford: OUP, 2004.