| Hoffman, Fred L.; 1912 Red Book; 1912 | 1912 Red Book | 1912-00-00 | MAJOR | Chief Engineer |
| Hoffman, Fred L.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | MAJOR | Chief Engineer |
| Hoffman, Fred L.; 1914 Red Book; 1914 | 1914 Red Book | 1914-00-00 | LAGONDA | Chief Engineer |
| Hoffman, Fred L.; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | MARS | Chief Engineer |
| Hoffman, Fred L.; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | MARS | Chief Engineer |
| Hoffman, Fred L.; 1919 Red Book; 1919 | 1919 Red Book | 1919-00-00 | HYDRUS | Chief Engineer |
| Hoffman, Fred L.; 1920 Red Book; 1920 | 1920 Red Book | 1920-00-00 | HYDRUS | Chief Engineer |