Das Amt in der Vergangenheit, 2010 title page (Peter Hayes) jacket flap (Peter Hayes; born 1946; professor of history and German at Northwestern University)
Imperial Germany, 1985 CIP title page (Peter Hayes)
Northwestern University, Department of History website, viewed July 7, 2014 link to People page (Peter Hayes; Ph. D. from Yale in 1982; Theodore Zev Weiss Holocaust Educational Foundation Professor; joined the faculty at Northwestern as an Instructor in 1980) http://www.history.northwestern.edu/people/hayes.html
WW Midwest, 1984-85 (Hayes, Peter Francis; Northwestern University, Evanston, Illinois; born September 7, 1946)