Joseph Ketley, who worked towards the abolition of slavery and promoted Christian teaching amongst the African population and the native Indian tribes of the Essequibo River in the 1830s and 1840s, attended the Anti-Slavery Convention in London on 12 July 1840.
Joseph Ketley, who worked towards the abolition of slavery and promoted Christian teaching amongst the African population and the native Indian tribes of the Essequibo River in the 1830s and 1840s, attended the Anti-Slavery Convention in London on 12 July 1840.