Jane Addams is well known for her leadership in urban reform, social settlements, pacifism, social work, and women's suffrage.The men of the Chicago School are well known for their leadership in founding sociology and the study of urban life.What has remained hidden however, is that Jane Addams played a pivotal role in the development of sociology and worked closely with the male faculty at the Department of Sociology at the University of Chicago.

By using extensive archival material, Mary Jo Deegan is the first to document Addams's sociological significance and the existence of a...