1. H. C. Wright to C. Clarkson, 25 October 1845, Clarkson Papers, Moorland-Spingarn Research Center, Howard University, Washington, DC. Certificates of honorary membership from the New York Society for … the Manumission of Slaves, 28 August 1788, and Pennsylvania Society for Promoting the Abolition of Slavery, 10 May 1790, are in the Clarkson Papers, Huntington Library, San Marino, California. In 1832 Clarkson was elected an honorary member of the New England Anti-Slavery Society. Francis Jackson Garrison and Wendell Phillips, William Lloyd Garrison 1805–1879, the Story of His Life (New York, 1885), Vol. I, p. 283.
2. Howard R. Temperley, ‘British and American Abolitionists Compared’ in Martin Duberman (ed.), Antislavery Vanguard (Princeton, 1965), pp. 343–61.
3. William Goodell, Slavery and Anti-Slavery: a History of the Great Struggle in Both Hemispheres (New York, 1853), p. 342;
4. David Brion Davis, Slavery and Human Progress (Oxford, 1986), p. 187;
5. Aileen S. Kraditor, Means and Ends in American Abolitionism: Garrison and His Critics on Strategy and Tactics, 1834–1850 (New York, 1967), p. 4;