a1 University of Illinois at Chicago
Correspondence:
Robert D. Johnston is associate professor and director of the Teaching of History Program, University of Illinois at Chicago. His book, The Radical Middle Class: Populist Democracy and the Question of Capitalism in Progressive Era Portland, Oregon (2003), was awarded the Social Science History Association President's Book Award. The latest of his historiographical essays on progressivism is “The Possibilities of Politics: Democracy in America, 1877–1917” in Eric Foner and Lisa McGirr, eds., American History Now (2011). He is writing a history of controversies over vaccination in American history for Oxford University Press.