Jean was a talented painter-member of the Lamorna group of artists that originally surrounded the late artist Lamorna KERR, the painter daughter of S J Lamorna BIRCH.  The Lamorna group continues to this day and holds annual exhibitions at the Lamorna Village Hall, also opening their studios to visitors for Open Studios weeks.

Jean was born in Workington, Cumbria and was a trained nurse (now retired). Her husband Martin Crosfil was a Consultant Surgeon latterly at the West Cornwall General Hospital (retired), and the couple have two children, a son and a daughter.

A self-taught and meticulous artist, her work was primarily in watercolour but also in other media. She concentrated on landscape paintings. Jean worked from her purpose-built studio at home, and exhibited her work regularly at Open Days/Studios held in West Cornwall at Village Halls and other venues.