The latest additions are in bold

Carter, Hodding with Carter, Betty W., Doomed Road of Empire: The Spanish Trail of Conquest, McGraw-Hill Book Company, 1963.

Cushman, Dan, The Great North Trail: America's Route of the Ages, McGraw-Hill Book Company, 1966.

Daniel, Jonathan, The Devil's Backbone: The Story of the Natchez Trace, McGraw-Hill Book Company, 1962.

Dillon, Richard, Siskiyou Trail: The Hudson's Bay Fur Company Route to California, McGraw-Hill Book Company, 1975.

Egan, Ferol, The El Dorado Trail: The Story of the Gold Rush Routes Across Mexico, McGraw-Hill Book Company, 1970.

Holbrook, Stewart H., The Old Post Road: The Story of the Boston Post Road, McGraw-Hill Book Company, 1962.

Johnson, Dorothy M., The Bloody Bozeman: The Perilous Trail to Montana's Gold, McGraw-Hill Book Company, 1971.

Jordan, Philip D., The National Road, The Bobbs-Merrill Company, 1948.

Kincaid, Robert L., The Wilderness Road, The Bobbs-Merrill Company, 1947.

Lavender, David, Westward Vision: The Story of the Oregon Trail, McGraw-Hill Book Company, 1963.

Lavender, David, Winner Take All: The Trans-Canada Canoe Trail, The McGraw-Hill Book Company, 1977.

Monaghan, Jay, The Overland Trail, The Bobbs-Merrill Company, 1947.

Remley, David A., Crooked Road: The Story of the Alaska Highway, McGraw-Hill Book Company, 1976.

Riesenberg, Jr., Felix, The Golden Road: The Story of California's Spanish Mission Trail, McGraw-Hill Book Company, 1962.

Rouse, Parke, Jr., The Great Wagon Road: From Philadelphia to the South, McGraw-Hill Book Company, 1973.

Soule, Gardner, The Long Trail: How Cowboys and Longhorns Opened the West, McGraw-Hill Book Company, 1976.

Stegner, Wallace, The Gathering of Zion: The Story of the Mormon Trail, McGraw-Hill Company, 1954.

Stewart, George R., The California Trail: An Epic With Many Heroes, McGraw-Hill Book Company, 1962.

Wayland, John W., The Valley Turnpike: Winchester to Staunton and Other Roads, Winchester-Frederick County Historical Society, 1967.