- Fort Ancient: The Great Prehistoric Earthwork of Warren County, Ohio - Primary Source Edition
- The Stone Age in North America: An Archæological Encyclopedia of the Implements, Ornaments, Weapons, Utensils, Etc., of the Prehistoric Tribes of North America; Volume 1
- Our National Problem; the sad Condition of the Oklahoma Indians
- Archaeology Of Maine
- The Hopewell Mound Group of Ohio