| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Campaigning with Parson's Texas Cavalry Brigade, C.S.A.: War Journal and Letters of the Four Orr Brothers, Twelfth Texas Cavalry Regiment | 978-O-912172-O3-3 (O-912172-O3-7) | etc. |
G.O. · J. G. · J G, etc. Orr