| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1976 | 978-0-89646-000-3 | E.S. Godfrey | Custer's Last Battle 1876 |
| '' | 978-0-89646-001-0 | Francis Lynde | Cripple Creek, Nineteen Hundred |
| '' | 978-0-89646-002-7 | Charles Nordhoff | C.P.R.R., The Central Pacific Railroad |
| 1980 | 978-0-89646-054-6 | H. C. Hovey | One Hundred Miles in Mammoth Cave- In 1880: An Early Exploration of America's Most Famous Cavern |
| 1981 | 978-0-89646-059-1 | John Wesley Powell | The Canyons of the Colorado |