1911 Encyclopædia Britannica, Volume 28… (1911)
“ WILBERFORCE, WILLIAM (1759-1833) , English philanthropist whose name is chiefly associated with the abolition of the slave trade, was descended from a Yorkshire family which possessed the manor of Wilberfoss in the East Riding from the time of Henry II. till the middle of the 18th century. He was the only son of Robert Wilberforce, member of a commercial house at Hull, by his wife Elizabeth, daughter of Thomas Bird of Barton, Oxon, and was born at Hull on the 24th of August 1759. ”
