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, 1st Baron Astor of Hever educated at Eton College and at New College, Oxford. Upon his father's death in 1919, John Jacob V inherited Hever Castle near Edenbridge, Kent, where he lived the life of an English country gentleman. John Jacob Astor V represented Great Britain in rackets at the 1908 Summer Olympics, winning the gold medal in the men's doubles competition together with Vane Pennell, and winning bronze in the men's singles event. Astor had been the British Public Schools rackets champion in 1904–05, and in the same year as his Olympic competition he played singles and doubles in the British Army rackets championships.