In dictionaries:
John Jacob Astor IV
(July 13, 1864 – April 15, 1912) an American business magnate, real estate developer, investor, writer, lieutenant colonel in the Spanish–American War, and a prominent member of the Astor family.
John Jacob Astor VI
(August 14, 1912 – June 26, 1992) an American socialite, shipping businessman, and member of the Astor family.
John Jacob Astor III
(June 10, 1822 – February 22, 1890) an American financier, philanthropist and a soldier during the American Civil War.
John Jacob Astor, 1st Baron Astor of Hever
Lieutenant-Colonel John Jacob Astor V, 1st
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