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In page Society for Effecting the Abolition of the Slave Trade:

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Several members of the society also subscribed to the African Institution (founded 1807 to create a viable, civilised refuge for freed slaves in Sierra Leone[1]).[2] The Sons of Africa abolitionist society had a membership of educated Londoners, mostly African former slaves. It was closely connected to the Society for Effecting the Abolition of the Slave Trade.[citation needed]