Marilynn Johnson is a professor of history at Boston College, where she teaches modern US urban and social history. She received her PhD in history at New York University and has taught at Southern Methodist University and the Graduate Consortium in Women’s Studies at MIT.  Her research focuses on migration, urban social relations, and violence. Her books include The Second Gold Rush: Oakland and the East Bay in World War II (1993) and Street Justice: A History of Police Violence in New York City (2004).  Most recently, she published The New Bostonians: How Immigrants Have Transformed the Metro Area Since the 1960s (University of Massachusetts Press, 2015).  She continues to do research on this subject and directs a public history website called Global Boston, which explores immigration history in greater Boston from the early nineteenth century to the present.