Helen Taylor was an English feminist, writer and actress. She was the daughter of Harriet Taylor Mill and stepdaughter of John Stuart Mill. After the death of her mother she lived and worked with Mill, and together they promoted women's rights. From 1876 to 1884 she was a member of the London School Board. In 1881, she joined the Democratic Federation. She was a supporter of women's suffrage and joined a petition to that effect from 1865, an inspiration for suffragists.

Harriet Taylor Mill was an English philosopher and women's rights advocate. Her extant corpus of writing can be found in The Complete Works of Harriet Taylor Mill. Several pieces can also be found in The Collected Works of John Stuart Mill, especially volume XXI.