| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Hendersons, those elegant machines: The complete history of Henderson motorcycles, 1911-1931 | 978-0-9642688-0-7 (0-9642688-0-9) | 1994 |
R.H. Schultz · R.S. · Richard H. · Richard Henry · Richard S. · Richard Schultz