| Nattress, Leonard C.; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; 1926 Blue Book; 1926 | 1926 Blue Book | 1926-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; 1927 Red Book; 1927 | 1927 Red Book | 1927-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; 1928 Red Book; 1928 | 1928 Red Book | 1928-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; Great Lakes News 11/48; 1948 | Great Lakes News 11/48 | 1948-00-00 | WESTERN STATES | Chief Engineer |
| Nattress, Leonard C.; Great Lakes News 5/39; 1939 | Great Lakes News 5/39 | 1939-00-00 | WESTERN STATES | Chief Engineer |