Fairfield took an interest in many social controversies throughout her career. As a medical student and a junior doctor, she campaigned with her two sisters alongside Dame
Christabel Pankhurst. She joined the militant suffragette
Women's Social and Political Union, but left the group when it was felt that her professional position as a doctor may be threatened, and when she developed a critical stance against Pankhurst's authoritarianism. During her time working with the War Office, Fairfield was an active member of the
Medical Women's Federation, with whom she campaigned for female equality in medicine and at war. In 1930–1932, she was appointed President of their London Branch, and from thence she continued to fight for female doctors' concerns on behalf of the
British Medical Association. Fairfield was interested in
parapsychology, and was a member of the
Society for Psychical Research. Despite many differences, Fairfield and her sister Cissy remained on the same political page throughout their lives. They both joined the
Fabian Society, for whom Fairfield spoke publicly and wrote regularly on female health issues. She was appointed as their Executive, put this down to her 'scarcity value' as a woman doctor. However, she was forced to leave the group shortly after World War I, as her political interests were no longer deemed compatible with advancement in her career with the LCC. In 1922, Fairfield converted to Roman Catholicism. This came as a great surprise to her friends and family, many of whom came from Ireland and were staunch Protestants. However, she did not agree with all of the tenets of the Catholic Church, opposing, for example, opposition to birth control. Notwithstanding, her devotion led to her being awarded the papal medal,
Pro Ecclesia et Pontifice in 1965. In her final months, despite her deteriorating health, she gave numerous interviews about her extraordinary career. She revealed in one of these: "I always chose, right from the beginning of my career, things that I thought were important but not popular."
Brian Harrison recorded 2 oral history interviews with Fairfield, in December 1976 and February 1977, as part of the Suffrage Interviews project, titled
Oral evidence on the suffragette and suffragist movements: the Brian Harrison interviews. Fairfield talks about her involvement with the WSPU,
Independent Labour Party, the
Church League for Women's Suffrage and the Fabian Society, including the
Fabian Women's Group. Fairfield died on 1 February 1978 from a succession of strokes. ==References==