| Walker, James L.; 1900 Red Book; 1900 | 1900 Red Book | 1900-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Walker, James L.; 1902 Red Book; 1902 | 1902 Red Book | 1902-00-00 | ROBERT FULTON | Chief Engineer |
| Walker, James L.; 1903 Red Book; 1903 | 1903 Red Book | 1903-00-00 | ROBERT FULTON | Chief Engineer |
| Walker, James L.; 1904 Red Book; 1904 | 1904 Red Book | 1904-00-00 | LASALLE | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | WADSWORTH | |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | JAMES GRIFFIN | |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NORTH STAR | engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NORTH STAR | engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | OHIO | First Assistant |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | DELAWARE | First Assistant |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | DELAWARE | First Assistant |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | JUNIATA | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | WISSAHICKON | First Assistant |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | JUNIATA | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | JUNIATA | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CLARION | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CLARION | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CLARION | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CLARION | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CLARION | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SCRANTON | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SCRANTON | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | ROBERT MILLS | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | GEORGE D. HADLEY | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | GEORGE D. HADLEY | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | GEORGE D. HADLEY | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | BADGER STATE | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | BADGER STATE | Chief Engineer |
| Walker, James L.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | MONTANA | Chief Engineer |