character: Theodore Roosevelt
topic: Influence on Conservation Policies and National Parks
grade: 10
subject: History
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character: John Muir
topic: Advocacy for National Parks and Wilderness
grade: 10
subject: History
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character: Gifford Pinchot
topic: Development of Forestry Services and Conservation Practices
grade: 10
subject: History
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character: Stephen Mather
topic: Role in Establishing the National Park Service
grade: 10
subject: History
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