As the face of Chicago changed during industrialization, so too did its workforce. The city had become a bustling metropolis, but at what cost? Dangerous working conditions prompted the rise of organized labor and a progressive movement, championed by social reformers like Jane Addams and Florence Kelley. In the second part of our look at turn of the century Chicago, Margaret Garb, associate professor of history at Washington University in St. Louis, examines the social and political movements that took place in reaction to the rapid industrialization of the city.