| The Schimmelhorn File: Memoirs of a Dirty Old Genius | 1979 |
| Thor's Hammer | 1979 |
| (Even More) Compleat Feghoot: The Many Lives and Greatest Exploits of History's Punniest... | 1980 |
| The Future At War | 1980 |
| Orion's Sword | 1980 |
| The Spear of Mars | 1980 |
| Gilpin's Space | 1986 |
| Schimmelhorn's Gold | 1986 |