James Pemberton George Whitefield Judge Sewel (Sewall) Benjamin Rush Winchester Various Quakers and/or abolitionists in England and America Benjamin Franklin Thomas Jefferson John Jay William Dillwyn Joseph Woods (Sr.) Samuel Hoare Jr George Harrison Dr. Thomas Knowles John Lloyd David Barclay James Phillips Joseph Gurney Bevan Joseph Hancock, a Wisbech Quaker (helped Clarkson find a publisher for his essay "Is it right to make slaves of others against their will?") Others, up to 1787 Dr. Peckard Thomas Clarkson Bennet Langton Lord Scarsdale Dr. Baker Richard Phillips Sheldon Sir Charles Middleton Sir Herbert Mackworth William Wilberforce John Villiers Powys (Lord Lilford) (possibly 1st baron) Sir Richard Hill (possibly 2nd Baronet) Lord Balgonie (Leven) L. Hawkins Browne Abolition forerunners not listed on the Clarkson map Many of the London salons and circles of the 1770s and later took up the cause of antislavery, at least intellectually, thus paving the way for later action. Examples include Johnson's Circle, the Blue Stocking Society, and James Oglethorpe's associates. Magnus IV of Sweden Joanna Baillie Anna Laetitia Barbauld Samuel Johnson Hannah More James Oglethorpe References External links Thomas Clarkson “map” http://www2.vcdh.virginia.edu/emancipation/TCAbolMap/clarkson.html Pre-emancipation African-American history Abolitionist Abolitionists Slavery-related lists