Anna Doyle Wheeler was a nineteenth‐century, Irish‐born socialist and feminist. She and another Irish‐born socialist and feminist, William Thompson, produced a book‐length critique in 1825, Appeal of One Half the Human Race, Women: Against the Pretensions of the Other Half, Men, to Retain Them in Political, and Thence in Civil and Domestic, Slavery: In Reply to a Paragraph of Mr. Mill's Celebrated “Article on Government,” to refute the claims of liberal philosopher James Mill in 1820 that women did not need to be enfranchised. In so doing the Appeal undermined the philosophical credibility of Mill's liberal utilitarianism. The Appeal exposed the hypocrisy of the language of contract (whether social, sexual, or marriage) by showing that men's freedom and claims to rights presupposed the unfreedom and sexual subjugation of women. The article argues that the Appeal was an original formulation of feminist political theory that still retains its relevance in the twenty‐first century.