William Vassall.

About William Vassall

English colonist William Vassall (1592–1656) is remembered both for promoting religious freedom in New England and commencing his family's ownership of slave plantations in the Caribbean. A patentee of the Massachusetts Bay Company, Vassall was among the merchants who petitioned Puritan courts for greater civil liberties and religious tolerance. In 1647, he and John Child published New-England’s Jonas cast up in London, a tract describing the efforts of colonial petitioners. By early 1648, Vassall moved to Barbados to establish a slave-labor sugar plantation. He and his descendants were among the Caribbean's leading planters, enslaving more than 3,865 people before Britain abolished slavery in 1833.