Priestman, along with members of hers and the Bright family, were important in the creation of some of the first women's suffrage societies, founded in London, Bristol, and Bath. She was also a supporter of the
Ladies National Association for the Repeal of the Contagious Diseases Acts, which was formed in 1870 by
Josephine Butler to protest against legislation which undermined the civil rights of those who had been designated prostitutes by the authorities in specified naval and military towns. Her sister Mary Priestman was the secretary of this organization and her sister
Margaret Tanner was its treasurer. All three sisters supported international campaigns against the government regulation of prostitution, and continued their family's close association with the
temperance movement. ==Legacy==