Raised in England.A former model.Daughter of the Irish-American silent film actress Molly Adair and the New Zealand-born Arthur Siggins, a former member of the Rhodesian police.Had one child, daughter Louise, with husband Peter Haigh.Had one child, daughter Tina, with husband Jim Adams.Began as an artist in England before becoming a model. In later years (1996) she returned to Portugal to be near her family and began painting again, focusing on animals, sea and landscapes, florals and whimsical character.In the early 70s, she, her husband Peter Haigh and her two children moved to the Algarve, in Southern Portugal, where they ran a small hotel for several years in the village of Albufeira. After her divorce, she continued with a restaurant career.Her modeling career began by happenstance. Employed as an assistant sketch artist at the department store Mr & Mrs Jones, Jill stepped in as a model when someone failed to show.Educated at home by a governess until the age of nine, Adams later attended Sherfield School, in Hampshire.First husband, Jim Adams, was a US Navy Junior Officer. The marriage, which produced a daughter, was short-lived.Was an artist and window dresser before becoming a model.The only girl of four children, her father, Arthur James Siggins, was a member of the Rhodesian mounted police before turning writer. He authored such African wildlife-themed books as "Man-Killers I Have Known" and "Shooting with Rifle and Camera". He met Jill's mother, silent actress Molly Adair while she was filming The Blue Lagoon (1923) in Tanganyika (now Tanzania).