building in Mount Pleasant, where Mansfield took her oath as the first female lawyer in the U.S. Babb taught at Des Moines Conference Seminary (now
Simpson College) in
Indianola, Iowa for a year. She returned to Mount Pleasant to marry her college sweetheart, John Melvin Mansfield, a young professor at Iowa Wesleyan. He encouraged her in her ambition to study law. Arabella Mansfield "read the law" as an apprentice in her brother Washington's law office, after he had passed the bar and established his practice. Although by Iowa law the bar exam was restricted to "males over 21," Arabella Mansfield took the exam in 1869, passing it with high scores. In 1869, Iowa became the first state in the union to admit women to the practice of law after Mansfield challenged the state law excluding her. The Court ruled that women may not be denied the right to practice law in Iowa, admitting Mansfield to the bar. Mansfield was sworn in at the
Union Block building in Mount Pleasant that year. Although admitted to the bar, Mansfield did not practice law, concentrating on college teaching and activist work. She taught at Iowa Wesleyan College, followed by
DePauw University in
Greencastle, Indiana. In 1893 she was selected as Dean of the School of Art at DePauw, and in 1894 as Dean of the School of Music. In 1893, Mansfield joined the National League of Women Lawyers. Mansfield was also active in the
women's suffrage movement, chairing the Iowa Women’s Suffrage Convention in 1870, and working with
Susan B. Anthony. Mansfield died August 1, 1911, at the home of her brother, Washington I. Babb, in Aurora, Illinois, before getting to see the suffrage movement’s ultimate achievement: passage of the
Nineteenth Amendment to the United States Constitution, effective in 1920. ==Legacy and honors==