| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | COLORADO | First Assistant |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | COLORADO | Oiler |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | COLORADO | First Assistant |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SCOTIA | First Assistant |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CHINA | First Assistant |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | POTOMAC | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | POTOMAC | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | POTOMAC | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | POTOMAC | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | ARABIA | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | ARABIA | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | ARABIA | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | ARABIA | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SYRACUSE | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SYRACUSE | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SYRACUSE | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | ALBANY | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |
| Gregory, J. N.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | HARLEM | Chief Engineer |