Names
- People's Lobby1
- People's Lobby.1
- Phelps, William Lyon, 1865-1943.1
- Pinchot, Amos Richards Eno, 1873-1944.1
- Pinchot, Gifford, 1865-19461
- Pinchot, Gifford, 1865-1946.1
- Republican Party (Mich.)1
- Sigler, Kim, 1894-1
- Sigler, Kim, b. 1894.1
- Stone, Irving, 1903-1
- Stone, Irving, 1903-1989.1
- Sullivan, Mark, 1874-1952.1
- United States. Congress -- Elections, 1920.1
- United States. Congress. House.1
- United States. Dept. of the Interior.1
- United States. National Park Service.1
- Vandenberg, Arthur H. (Arthur Hendrick), 1884-1951.1
- West, Roy Owen, 1868-1958.1
- Wheeler, Wayne Bidwell, 1869-1927.1
- Wilbur, Ray L. (Ray Lyman), 1875-1949.1