She produced several pointillist self-portraits alongside portraits of her mother and female friends. One of these was of the artist Catherine Dawson Giles, whom Dismorr had known since 1904 when they met in Etaples. The two had also travelled together on painting expeditions in Europe in the 1920s. For several years Dismorr had lived at the Giles family home in London. Throughout her final years, Dismorr continued painting and exhibiting her work, which became completely abstract during the late 1930s. She exhibited with the Association Abstraction-Creation. She contributed her work, "Related Forms" to "Axis" magazine in 1937 (no 8: 25).