Gregory D SumnerGregory D. Sumner is co-chair of the Department of History at the University of Detroit Mercy, where he has taught since 1993. Sumner holds a PhD in American history from Indiana University and a JD from the University of Michigan Law School. His preious books include Unstuck in Time: A Journey through Kurt Vonnegut's Life and Novels (Seven Stories Press, 2011) and Detroit in World War II (The History Press, 2015). Read More Read Less
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