Bio Sketch: Trained as a historian of U.S. labor and immigration, I now place these fields in comparative, transnational, and interdisciplinary perspectives. I teach graduate and undergraduate history classes in comparative working-class cultures and comparative race and nationalisms. Having published a first book, Mexican Workers and American Dreams: Immigration, Repatriation, and California Farm Labor, 1900-1939, that examined ethnic Mexican farmworkers in both U.S. and transnational contexts, I am now completing a binational study of the culture of coal mining communities that engages recent literature on space and place, race and identity. This project examines coal fields in three disparate regions: northern New Mexico & southern Colorado in the U.S. West; Appalachia in the U.S. South; and South Wales in the U.K. A manita from northern New Mexico, my scholarship and teaching are dedicated an understanding of the politics of difference in all its complexity, and to the pursuit of social justice that flows out of that understanding. Research Interests: Transnational and Comparative Working-Class History; Comparative Race & Nationalisms; Latin@ Studies in Comparative Perspective; Twentieth-Century U.S. History.