Josephine Elizabeth Butler was an English feminist and social reformer in the Victorian era. She campaigned for women's suffrage, the right of women to better education, the end of coverture in British law, the abolition of child prostitution, and an end to human trafficking of young women and children into European prostitution.
Grey grew up in a well-to-do and politically connected progressive family which helped develop in her a strong social conscience and firmly held religious ideals. She married George Butler, an Anglican divine and schoolmaster, and the couple had four children, the last of whom, Eva, died falling from a banister. The death was a turning point for Butler, and she focused her feelings on helping others, starting with the inhabitants of a local workhouse. She began to campaign for women's rights in British law. In 1869 she became involved in the campaign to repeal the Contagious Diseases Acts, legislation that attempted to control the spread of venereal diseases—particularly in the British Army and Royal Navy—through the forced medical examination of prostitutes, a process she described as surgical or steel rape.