From: GALLERY : A PICTORIAL BACKGROUND TO THE LIFE & TIMES OF WILLIAM ROWBOTTOM, circa 1757 - 1830
Thomas Clarkson, 1760 - 1846
Britain's Protest Against Slavery : Clarkson Presiding at a Convention of the Anti-Slavery Society
"The British Anti-Slavery Society, founded under the presidency of Thomas Clarkson, had as its object the universal extinction of slavery and the protection of the enfranchised population in the British possessions. Chief among those associated with him was William Wilberforce, whose labours on behalf of the cause did much to arouse public sympathy and to bring about its final triumph in 1833, when the Emancipation Act was passed, thus putting an end by gradual steps to slavery and arranging for the payment of £20,000,000 to slave-holders.
From the picture by B.R. Haydon, R.A. in the National Portrait Gallery "
From: 'Harmsworth History of the World' Pub.1909