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Professor of History, University of California, Santa Cruz

My research and teaching interests include U.S. immigration and working-class history, with a particular focus on the Irish experience in America; ethnicity and race in U.S. history, including the history of movements for racial justice; and Irish history and politics.

I have published widely in the fields of American immigration and Irish Diaspora history, including recent essays in The Oxford Handbook of American Immigration and Ethnicity, ed. Ronald H. Bayor (Oxford University Press, 2016), Remembering 1916: The Easter Rising, The Somme and the Politics of Memory in Ireland, ed. Richard S. Grayson and Fearghal McGarry (Cambridge University Press, 2016), and Ireland's Allies: America and the 1916 Easter Rising, ed. Miriam Nyhan Grey (University College Dublin Press, 2016).

My most recent book is Irish Nationalists in America: The Politics of Exile, 1798-1998 (Oxford University Press, 2016).


  • –present
    Professor of History, University of California, Santa Cruz