William Batchelder Greene was a 19th-century mutualist individualist anarchist, Unitarian minister, soldier and promoter of free banking in the United States. Greene is best known for the works "Mutual Banking" (1850), which proposed an interest-free banking system; and "Transcendentalism", a critique of the New England philosophical school. American anarchist historian Eunice Minette Schuster states: "It is apparent that Proudhonian Anarchism was to be found in the United States at least as early as 1848 and that it was not conscious of its affinity to the Individualist Anarchism of Josiah Warren and Stephen Pearl Andrews. William B. Greene presented this Proudhonian Mutualism in its purest and most systematic form". After 1850, he became active in labor reform and was elected vice-president of the New England Labor Reform League, the majority of the members holding to Proudhon's scheme of mutual banking. In 1869, he was elected president of the Massachusetts Labor Union. Greene then published "Socialistic, Mutualistic, and Financial Fragments" (1875). He saw mutualism as the synthesis of "liberty and order". His "associationism is checked by individualism. 'Mind your own business,' "Judge not that ye be not judged". Over matters which are purely personal, as for example moral conduct, the individual is sovereign, as well as over that which he himself produces. For this reason he demands "mutuality" in marriage – the equal right of a woman to her own personal freedom and property".