An Original Handwritten and Signed Paper Piece by British politician, philanthropist, and a Leader of the Movement to Abolish the Slave Trade William Wilberforce . A thank you note. William Wilberforce 1759 – 1833 was a British politician, philanthropist, and a leader of the movement to abolish the slave trade. Wilberforce has also been described as a humanitarian reformer who contributed to reshaping the political and social attitudes of the time by promoting concepts of social responsibility and action. Size is 158mm x 100mm. Condition is good. Mounted on paper