This article offers a brief theological biography of Sophia Lyon Fahs, a religious educator whose life and work unfolded during the first seven decades of the Religious Education Association and reflected many of the identity-bearing modalities that continue to give shape and continuity to the organization. In 1972, Boardman Kathan, the General Secretary of the Religious Education Association, described Fahs as "one of the truly great pioneers of religious education in the 20th century, in the company of Harrison Elliott, Frank McMurry and George Albert Coe." Fahs anticipated many theological challenges to religious education that were ahead of her time.