Originally published 06/21/2013
BUNCE ISLAND, Sierra Leone—Twelve American presidents owned slaves, eight while serving in office, and at least 25 presidents count slave owners among their ancestors. But new historical evidence shows that a direct ancestor of George W. and George H.W. Bush was part of a much more appalling group: Thomas Walker was a notorious slave trader active in the late 18th century along the coast of West Africa.Walker, George H.W. Bush's great-great-great grandfather, was the captain of, master of, or investor in at least 11 slaving voyages to West Africa between 1784 and 1792....