DeLancey Astor Kane the mother of Peter Augustus Jay), and Sybil Kent Kane. He was the grandson of Walter Langdon and Dorothea (née Astor) Langdon and the great-grandson of John Jacob Astor. He was a cousin of Lt. Col. John Jacob Astor IV. His paternal lineage descended from John O'Kane who emigrated to the country in 1752 from County Londonderry and Antrim, Ireland. During the American Revolutionary War, O'Kane (who dropped the "'O" once in America) was living at Sharyvogne, his estate in Dutchess County, which was confiscated after the War due to his Loyalist times. His eldest son, John Jr., stayed and
John Jacob Astor III John Jacob Astor III John Jacob Astor III (June 10, 1822 – February 22, 1890) was an American financier, philanthropist and a soldier during the American Civil War. He was a prominent member of the Astor family, becoming the wealthiest family member in his generation and the founder of their English branch. Astor was the eldest son of real estate businessman William Backhouse Astor, Sr. (1792–1875) and Margaret Alida Rebecca Armstrong (1800–1872). His younger brother, businessman William Backhouse Astor, Jr. (1829–1892), became the patriarch of the male line of American Astors. His paternal grandparents were fur-trader John Jacob Astor (1763–1848)