1943 - , Prof. Emeritus and Senior Scholar in the Dep. of History, York Univ., Canada
keine Angaben zu Lebensdaten, Emeritus Prof. of History at Ohio Univ.
keine Angaben zu Lebensdaten, Prof. Emeritus d. Dep. of History at Winona State Univ.
1901 - , Emeritus Prof. of History; Northwestern Univ. (1988)