The following is a list of notable people who owned other people as slaves, where there is a consensus of historical evidence of slave ownership, in alphabetical order by last name. A Adelicia Acklen (1817–1887), at one time the wealthiest woman in Tennessee, she inherited 750 enslaved people from her husband, Isaac Franklin. Stair Agnew (1757–1821), land owner, judge and political figure in New Brunswick, he enslaved people and participated in court cases testing the legality of slavery in the colony. William Aiken (1779–1831), founder and president of the South Carolina Canal and Rail Road Company, enslaved hundreds on his rice plantation. William Aiken Jr. (1806–1887), 61st Governor of South Carolina, state legislator and member of the U.S. House of Representatives, recorded in the 1850 census as enslaving 878 people. Isaac Allen (1741–1806), New Brunswick judge, he dissented in an unsuccessful 1799 case challenging slavery (R v Jones), freeing his own slaves a short time later. Joseph R. Anderson (1813–1892), civil engineer, he enslaved hundreds to operate his Tredegar Iron Works. John Armfield (1797–1871), Virginia co-founder of "the largest slave trading firm" in the United States, and a rapist. David Rice Atchison (1807–1883), U.S. Senator from Missouri, slave owner, prominent pro-slavery activist, and violent opponent of abolitionism. William Atherton (1742–1803), English owner of Jamaican sugar plantations. John James Audubon (1785–1851), American naturalist. He objected to Britain's abolition of slavery in the Caribbean and bought and sold enslaved people himself. B Jacques Baby (1731–1789), French Canadian fur trader, slaveholder, and father of James Baby. James Baby (1763–1833), prominent landowner, slaveholder, and official in Upper Canada. Abu Bakr al-Baghdadi (1971–2019), self-proclaimed Caliph of the Islamic State of Iraq and Syria (ISIS), he kept several sex slaves. Adriana Bake (1724–1787), wife of the Governor-General of the Dutch East Indies, her foster children freed her slaves after her death. Vasco Núñez de Balboa (1475–1519), Spanish explorer and conquistador, he enslaved the indigenous people he encountered in Central America. Emanoil Băleanu (–1862), Wallachian politician, he enslaved Romani people on his estates. In 1856 he signed a letter protesting the abolition of slavery in Wallachia. Elizabeth Swain Bannister (–1828), free woman of colour who owned 76 slaves in Berbice. Hayreddin Barbarossa (1478–1546), Ottoman corsair and admiral who enslaved the population of Corfu. William Barksdale (1821–1863), U.S. Representative and white supremacist, he enslaved 36 people by 1860 and vigorously defended the institution of slavery. Alexander Barrow (1801–1846),