| A.Murie | Papers of Adolph Murie, American Heritage Center, University of Wyoming |
| ASLA-LC | Papers of American Society of Landscape Architects, Library of Congress |
| Bratton | Personal files of Susan P. Bratton, National Park Service |
| CAHA | Cape Hatteras National Seashore files |
| Dennis | Personal files of John G. Dennis, National Park Service |
| DEVA | Death Valley National Monument files |
| EVER | Everglades National Park files |
| Falb | Personal files of Richard D. Falb, National Park Service |
| FLO-LC | Papers of Frederick Law Olmsted, Jr., Library of Congress |
| Garrison | Papers of Lemuel A. Garrison, Special Collections, Clemson University |
| Grinnell | Papers of George Bird Grinnell, Manuscripts and Archives, Yale University Library |
| GRSM | Great Smoky Mountains National Park files |
| Hartzog | Papers of George B. Hartzog, Jr., Special Collections, Clemson University |
| JHMcF | Papers of J. Horace McFarland, Pennsylvania State Archives |
| Kent | Papers of William Kent, Manuscripts and Archives, Yale University Library |
| Leopold | Papers of A. Starker Leopold, Bancroft Library, University of California at Berkeley |
| Leopold-FRM | Papers of A. Starker Leopold, Department of Forestry and Resource Management, University of California at Berkeley |
| Linn | Personal files of Robert M. Linn, Houghton, Michigan |
| Mather-BL | Stephen T. Mather scrapbooks, Bancroft Library, University of California at Berkeley |
| MVZ-UC | Museum of Vertebrate Zoology Archives, University of California at Berkeley |
| NPS-HC | National Park Service History Collection, Harpers Ferry, West Virginia |
| OLYM | Olympic National Park files |
| O.Murie | Papers of Olaus Murie, Conservation Manuscripts Collection, Denver Public Library |
| REDW | Redwood National Park files |
| Reeser | Personal files of Donald W. Reeser, National Park Service |
| RG79 | Record Group 79, Records of the National Park Service, National Archives |
| Sprugel | Personal files of George Sprugel, Jr., Champaign, Illinois |
| Supernaugh | Personal files of William R. Supernaugh, National Park Service |
| THRO | Theodore Roosevelt National Park files |
| TIC | Technical Information Center, Denver Service Center, National Park Service |
| Waggoner | Personal files of Gary S. Waggoner, U.S. Geological Survey |
| Walker | Papers of Ronald H. Walker, Special Collections, Clemson University |
| Wauer | Personal files of Roland H. Wauer, Victoria, Texas |
| WS | Papers of the Wilderness Society, Conservation Manuscripts Collection, Denver Public Library |
| YELL | Yellowstone National Park archives |
| YOSE | Yosemite National Park archives |
