Boyd Hilton, Whiggery, Religion and Social Reform: The Case of Lord Morpeth', The Historical Journal Vol. 37, No. 4 (Dec., 1994), pp. 829–859, at p. 834. Published by: Cambridge University Press. JSTOR2639842
John Seed, Gentlemen Dissenters: The Social and Political Meanings of Rational Dissent in the 1770s and 1780s, The Historical Journal Vol. 28, No. 2 (Jun., 1985), pp. 299–325, at p. 320. Published by: Cambridge University Press. JSTOR2639100