E -R · E. Walker · Edwin R. Walker · R. Walker
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Avoiding The Calamity | 978-1-0860-4259-7 (1-0860-4259-X) | 2019 |
| Black Powder Revolver Primer, V2 & the "Avenging Angel" | 978-1-0907-8518-3 (1-0907-8518-6) | 2019 |
| The Black Powder Rifle: Their use and upkeep | 978-1-6885-8395-5 (1-6885-8395-5) | 2019 |