Katharine Drexel was an important educator who taught profound lessons to the Roman Catholic Church and American society about the responsibility of privilege and the irresponsibility of prejudice. As a professed nun dedicated to the education of Black and Native Americans, she taught both intentionally and by example. Religious educators, seeking to educate for peace and justice, often point to Katharine's life work as an example of the application of Catholic social teaching. This article argues that Katharine's educational import in regards to Catholic social teaching goes much deeper than the concrete examples of her life's work. By studying Katharine's life, religious educators can illustrate the foundational attitudes and habits necessary for the principle of social justice to take root. This will be articulated in terms of underlying emphases found in aspects of Katharine's story: emphasis on totality, on clarity of vision and purpose, on evangelization, on family ethical formation, on moral education, and on Eucharistic spirituality. A corresponding action for religious educators will be suggested.