Thelma Morgan

American socialite born in Switzerland into a noted family, the identical twin to Gloria and the daughter of a Diplomat father and a Spanish mother. The twins had an older sister, Consuelo, and a younger brother, Harry. They were raised in a half dozen international homes in Europe, America and South America with many travels and little time with their parents. Both girls were on their own in New York when barely 16. She eloped with James Vail Converse, Jr. of the Bell Telephone family when she was less than 18. After a miscarriage, they divorced. Her second marriage was to Lord Furness; their son Anthony was born in May 1929. While married to Furness, she was a mistress of King Edward VIII while he was still the Prince of Wales; she preceded Wallis Simpson in his affections (for whose sake Edward abdicated and became the Duke of Windsor). She was the maternal aunt of the author, fashion designer and socialité Gloria Vanderbilt (daughter of Thelma's twin sister Gloria). Furness and her sister Gloria wrote a memoir, Double Exposure (1959). She died on 29 January 1970, aged 65, in Manhattan, New York City. Link to Wikipedia biography