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 purchased ten tons of Turkish opium, then shipped the contraband item to Canton on the packet ship "Macedonian". Astor later left the China opium trade and sold solely to the United Kingdom. Astor's business rebounded in 1817 after the U.S. Congress passed a protectionist law that barred foreign fur traders from U.S. territories. The American Fur Company came to dominate trading in the area around the Great Lakes. John Jacob Astor had a townhouse at 233 Broadway in Manhattan and a country estate, Hellgate in Northern New York City. In 1822, Astor established the Robert Stuart House on Mackinac Island