Warren was born Carol Grace Christian in April 1950, the daughter of Charlotta Zita Warren and Charles James Bert Christian.[1] She had two children, Ronald and Dean in 1969 and 1971.[1]
In 1973 she stood for election to the Island Council, and was elected unopposed, becoming one of the first female members of the Island Council alongside Thelma Brown.[2] She subsequently had nine spells on the council; 1974–1975, 1978, 1981, 1986–1989, 1991, 1993, 1995, 1998 and 2003–2007.[3]
In 1976 she married Jay Warren, with whom she had two daughters, Darralyn and Charlene. In 2020 Charlene became the first woman to be elected Mayor of Pitcairn.