The Kensington Society was established in 1865 and was a discussion group made up of British women who supported the suffrage movement. The group aimed to achieve equality for women in a number of areas such as marriage, education, and work.
Mill was an avid supporter of women’s suffrage and even became involved in the society through his stepdaughter, Helen Taylor, a member of the society. Mill sent letters on behalf of Helen Taylor to important women, such as Florence Nightingale to encourage their participation in the Kensington society.
Sources:
Oxford Dictionary of National Biography. “Kensington Society (Act. 1865–1868).” Accessed February 13, 2021. https://doi.org/10.1093/ref:odnb/92488.
Mill, John. Autobiography. Edited by John M. Robson. London: Penguin Books, 1989.