Nancy Bush Ellis, George H.W. Bush's only sister, born in 1926. She graduated from Vassar, class of 1946, and married Alexander "Sandy" Ellis Jr. (Yale 1944). She was a liberal Democrat and had an affair with the Kennedy historian Arthur Schlesinger Jr. Ellis was active in raising money for the NAACP. When her brother ran for President in 1988, she became a Republican to vote for him.