She was the daughter of Joseph Cleaver (Postman) and Lavinia Alice Cleaver (née Thomas). At the time of her birth, the family lived at 42 Marquis Road, Pancras.
While she was still in her teens Alice started working as a nursemaid to fashionable English families. In 1911 she was working as a nurse maid in the Harley St. home of the Sargeant family.
After the collision on the night of April 14th, 1912; Alice apparently bundled up the infant in her charge and went off to Second Class to round up the rest of the Allison household. Alice boarded lifeboat 11. Bedroom Steward William Faulkner held baby Trevor while Alice got in. Although there is no firm evidence it seems certain that the Allisons were unaware that Cleaver had taken the child off safely.
When she arrived in New York with the child, Alice avoided talking to reporters by telling them her name was Jean.
After the sinking, she returned to England and on June 22nd, 1918 she married widower Edward James Williams (born 1891), a clerk (later a surgical appliance manufacturer). They had two daughters. Although she reportedly never talked about the sinking, she is listed as a contributor to Walter Lord's research for A Night to Remember (as Mrs. A. C. Williams).
At the time of Alice's death on November 1st, 1984; she was the last surviving servant passenger of the Titanic.