O D · R.D. · R. Davis · R. O. Davis
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Herndon's Informants: Letters, Interviews, and Statements about Abraham Lincoln | 978-0-252-02328-6 (0-252-02328-5) | 1997 | Douglas L Wilson |
| The Lincoln-Douglas Debates | 978-0-252-03355-1 (0-252-03355-8) | 2008 | Douglas L. Wilson |