Theodore Roosevelt: A Strenuous Life

Blessed Among Nations: How the World Made America

A Fierce Discontent: The Rise and Fall of the Progressive Movement in America, 1870-1920

The Gilded Age and Progressive Era: A Documentary Reader

Theodore Roosevelt, the Progressive Party, and the Transformation of American Democracy (American Political Thought)

Atlantic Crossings: Social Politics in a Progressive Age

Conservation in the Progressive Era: Classic Texts (Weyerhaeuser Environmental Classics)

The New Cambridge History of American Foreign Relations: Volume 2, The American Search for Opportunity, 1865-1913

Crimes against Nature: Squatters, Poachers, Thieves, and the Hidden History of American Conservation