Cashmore was born in 1876 at Norton House in Norton Malreward. She was the penultimate child of six born to Mary, (previously Edmunds) and Samuel Cashmore. Her father was a Liberal merchant who believed in free trade.[1] She went to Cheltenham Ladies College before she went to Somerville College to study modern history. She graduated in 1902 with a second class degree.[1]
She was employed at Bristol University College's Women's Day Training College.[2]
When the Bristol University Settlement opened in Bristol's Barton Hill she was the first warden.[2] Bristol University Settlement was founded by Marian Pease and Cashmore in 1911.[3] Cashmore was the main promoter and she saw the settlement achieving dual aims of assisting the welfare to the area and as a base for studies of the area. Other settlements had tried to partner with universities but Cashmore aimed for a strong link. A training syllabus was established for a course in social work and Cashmore was responsible for the course's practical work.[4]
She became the chair of the British Association of Residential Settlements in 1920. She also worked in 1920 in Galicia during the Polish–Soviet War as part of the Friends' War Victims Relief Committee where she helped to reduce typhus.[1]
She served in Bristol until 1926 when she left Bristol to lead the Manchester University Settlement in the poor area of Ancoats and to teach students taking a social study diploma. She returned in 1934 to Somerset which she preferred.[1]
