Pope Francis highlighted the work of Dorothy Day and the Catholic Worker Movement in his address to the U.S. Congress:
"In these times when social concerns are so important, I cannot fail to mention the Servant of God Dorothy Day, who founded the Catholic Worker Movement. Her social activism, her passion for justice and for the cause of the oppressed, were inspired by the Gospel, her faith, and the example of the saints." (2015)
You can find extensive information in libraries and on the Internet about Dorothy Day and the campaign for her canonization. Some people question, however, whether Day would have wanted this recognition from the Church. They speculate that she would have wanted any funds spent on canonization be used instead to help the poor.
Day identified with poor people and spoke out about not only civil injustices but injustices in the Church. The Catholic Worker Movement that she and Peter Maurin founded is still active in the United States. Catholic Worker houses exist in many large cities in the United States. (from http://www.loyolapress.com/dorothy-day-fyi.htm)
Here are several videos about Dorothy Day.
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Or read a short biography here.
Everything a baptized person does every day should be directly or indirectly related to the Corporal and Spiritual Works of Mercy. --Dorothy Day