Author/Creator
- United States14
- United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on National Parks6
- United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on National Parks, author6
- United States. Congress. House. Committee on Natural Resources, author5
- United States. Congress. House. Committee on Public Buildings and Grounds4
- United States. Congress. House. Committee on Natural Resources. Subcommittee on National Parks, Forests, and Public Lands (2007- )2
- United States. Congress. House. Committee on Naval Affairs2
- United States. Congress. House. Committee on the Library2
- United States. Congress. House. Committee on Natural Resources. Subcommittee on National Parks, Forests, and Public Lands (2007-2013)1
- United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on National Parks, Historic Preservation, and Recreation1