Born Patricia Tuagatagaloa Vatolo,[1] Rex was from the village of Alofi.
[2] In 1941 she married Robert Rex and the couple had four children.
[1] Her husband went on to become the Leader of Government Business, and in 1974 was appointed as the first Premier of Niue.
[3] She remained a member of the Assembly until losing her seat in the 1993 elections.
[4] Rex also designed the flag of Niue,[2] which was adopted in 1975.