Author and activist Abby Morton Diaz (1821-1904) was a member of the Brook Farm Transcendental community from 1842 until it folded in 1847. Although critics have long recognized that Brook Farm played a role in Diaz's intellectual preparation, they have not attempted to demonstrate its influence through a study of her writings. In this study I will examine in detail two of Diaz's novels and two long essays, with passing references to other works, that reveal how the utopian socialism practiced at Brook Farm influenced Diaz as a writer and reformer. In all her writings Diaz emphasized the importance of education for women so that they may successfully fulfill their roles as wives, mothers, and their children's first teachers. Her philosophy is reflected in the reform initiatives she supported: the Women's Educational and Industrial Union and the Nationalist Party.