Robert Wedderburn (1762-1835) was a sailor, tailor, preacher, author, publisher, labor activist, and radical abolitionist. Born in Jamaica to an enslaved mother and her Scottish owner, he joined the British Navy and spent most of his adult life in London, where he helped to lead a series of subversive religious and political movements. He was spied upon, arrested, and imprisoned several times for blasphemy and keeping a bawdy house. His incomplete autobiography, The Horrors of Slavery, recounts his family history. The full version is available here.
Source: General Reference Collection, British Library (London, UK)