Sophia Willard Dana Ripley (1803-1861), wife of George Ripley, was a nineteenth-century feminist, a Transcendentalist and later a Catholic. A friend of Margaret Fuller, she was among the few regular women guests of the Transcendental Club in the 1830s, and she published an essay on women in The Dial. In the 1840s she co-founded Brook Farm along with her husband; but she became drawn to Catholicism and eventually converted, straining her relationship with George Ripley.