1. The Wilderness War (1978)
2. Gateway to Empire (1979)
3. That Dark and Bloody River (1980)
4. The Conquerors (1981)
5. The Age of Discovery (1982)
6. The Long Twilight (1983)
7. Frontiersmen (1984)
8. Blue Jacket: War Chief of the Shawnees (1985)
9. Wilderness Empire (1986)
10. The Land Beyond the Mountains (1987)
11. Twilight of Empire (1988)
12. A Time of Torment (1989)
13. The Dark Fields of Eden (1990)
14. The Wilderness War (Revised) (1992)
15. Gateway to Empire (Revised) (1993)
16. That Dark and Bloody River (Revised) (1994)
17. The Conquerors (Revised) (1995)
18. The Age of Discovery (Revised) (1996)
19. The Long Twilight (Revised) (1997)
20. Frontiersmen (Revised) (1998)
21. Blue Jacket: War Chief of the Shawnees (Revised) (1999)
22. Wilderness Empire (Revised) (2000)
23. The Land Beyond the Mountains (Revised) (2001)
24. Twilight of Empire (Revised) (2002)
25. A Time of Torment (Revised) (2003)
26. The Dark Fields of Eden (Revised) (2004)