She originally trained as a nurse and began painting during the 1950s while recovering from illness. Her name '"Camille" is actually a nickname given to her by first husband Gordon Souter in reference to the consumptive heroine of Alexandre Dumas' La Dame aux Camélias.
Camille Souter captures light and color, texture and form in intimate almost abstract paintings of unexpected subjects, her subject matter has included landscapes, still lifes and slaughterhouses. In Circa 89 in a review of Camille Souter's joint show with Nano Reid, Vona Groarke writes: "Camille Souter's paintings have a statuesque elegance to them, even when the subject is something as banal as silage bags. She is an artist who avoids prettiness while seeking beauty."
The Douglas Hyde Gallery held a retrospective of her work in 1980.
She lives on Achill Island.
- "Achill artist honoured by President McAleese". Mayo Advertiser. 5 December 2008.