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
Caroline Schermerhorn Astor Hermann Oelrichs, and Alva Belmont, by then the wife of Oliver Belmont. Caroline Schermerhorn Astor Caroline Webster "Lina" Schermerhorn (September 21, 1830 – October 30, 1908) was a prominent American socialite of the second half of the 19th century. Famous for being referred to later in life as ""the" Mrs. Astor" or simply "Mrs. Astor", she was the wife of businessman, racehorse breeder/owner, and yachtsman William Backhouse Astor Jr.. She was the mother of five children, including Colonel John Jacob Astor IV, who perished on the RMS "Titanic". Through her marriage, she was a prominent member of the Astor family