The income tax and the Progressive era

Multiculturalism in the United States

Multiculturalism in the United States

Encyclopedia of the Gilded Age and Progressive Era

Milwaukee in the 1930s

The Gilded Age And Progressive Era 1877-1920 (Sources of the American Tradition - The Gilded Age and Progressive Era 1877-1920)

History Of Wisc 4/Progressive Era: Volume IV

Progressive Era, 1893-1914 Vol. 4