John Jacob Astor IV Alida Rebecca Armstrong, Astor was also a great-grandson of Senator John Armstrong, Jr. and Alida Livingston of the Livingston family. His maternal grandparents were Abraham Schermerhorn, a wealthy merchant, and socialite Helen Van Courtlandt White. He was also a nephew of financier and philanthropist John Jacob Astor III, and grandnephew of occasional poet John Jacob Astor, Jr. His sister Helen's husband was diplomat James Roosevelt "Rosey" Roosevelt, half-brother of President Franklin Delano Roosevelt of the Roosevelt family. Another sister, Carrie, a noted philanthropist, was the wife of Marshall Orme Wilson (brother of banker Richard Thornton Wilson, Jr. and socialite Grace
John Jacob Astor Astor correctly predicted New York's rapid growth northward on Manhattan Island, and he purchased more and more land beyond the then-existing city limits. Astor rarely built on his land, but leased it to others for rent and their use. After retiring from his business, Astor spent the rest of his life as a patron of culture. He supported the ornithologist John James Audubon in his studies, art work, and travels, and the presidential campaign of Henry Clay. On September 19, 1785, Astor married Sarah Cox Todd, who died in 1834. Her parents were Scottish immigrants Adam Todd and Sarah Cox.