From 1973 to 1977, she was artistic director for London's Unicorn Theatre.
[1] Gibbs was involved with the Unicorn Theatre from the 1950s, and became artistic director in 1973.
[2] She was a character actor, and appeared in the West End in a play by Alan Ayckbourn, Ten Times Table, in 1978.
[2] In 1961, Gibbs began living with the actor Ursula Jones in Notting Hill.
Gibbs and Jones were known by their friends as "Puck and Ursie".