Hugh D. Auchincloss

Hugh Dudley Auchincloss, Jr. was an American stockbroker and lawyer who became the second husband of Nina Gore, mother of Gore Vidal, and also the second husband of Janet Lee Bouvier, the mother of First Lady Jacqueline Bouvier Kennedy and Caroline Lee Bouvier.

Auchincloss was born at Hammersmith Farm in Newport, Rhode Island. He was the son of Hugh Dudley Auchincloss, Sr. , a merchant and financier, and Emma Brewster Jennings, daughter of Oliver Burr Jennings and Esther Judson Goodsell. His uncles were Edgar Stirling Auchincloss and John Winthrop Auchincloss . He had two older sisters, Esther Judson Auchincloss and Ann Burr Auchincloss. His father was the youngest brother of Edgar Stirling Auchincloss, making Hugh the nephew of Edgar Stirling Auchincloss and cousin of politician James C. Auchincloss.

Source: Wikipedia