Normanton was also a committed feminist, and heavily involved in the fight for women’s votes. She was a member of the Women’s Freedom League, a democratic but militant suffrage group. Although Normanton married in 1921, she was committed to keeping her maiden surname for professional reasons—she was the first married woman in Britain to keep her maiden name on her passport. She campaigned passionately for divorce reform, and was president of the Married Women’s Association.
She also fought for women’s rights to financial independence, publishing a radical pamphlet in 1914 entitled Sex Differentiation in Salary which argued that women should be given equal pay for equal work:
During and after a war, many soldiers’ wives and widows become the breadwinners for families. Should they be paid according to their sex or their work?
By the time of her death in 1957, she had paved the way for women barristers, and achieved many ‘firsts’ for women in law.