| Armstrong, S. W. | | | HENRY C. FRICK | Chief Engineer |
| Armstrong, S. W.; 1899 Red Book; 1899 | 1899 Red Book | 1899-00-00 | SIR WILLIAM FAIRBAIRN | Chief Engineer |
| Armstrong, S. W.; 1900 Red Book; 1900 | 1900 Red Book | 1900-00-00 | ROBERT W. E. BUNSON | Chief Engineer |
| Armstrong, S. W.; 1901 Red Book; 1901 | 1901 Red Book | 1901-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Armstrong, S. W.; 1902 Red Book; 1902 | 1902 Red Book | 1902-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Armstrong, S. W.; 1903 Red Book; 1903 | 1903 Red Book | 1903-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Armstrong, S. W.; 1904 Red Book; 1904 | 1904 Red Book | 1904-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Armstrong, S. W.; 1905 Red Book; 1905 | 1905 Red Book | 1905-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Armstrong, S. W.; 1906 Red Book; 1906 | 1906 Red Book | 1906-00-00 | GEORGE STEPHENSON | Chief Engineer |
| Armstrong, S. W.; 1907 Red Book; 1907 | 1907 Red Book | 1907-00-00 | HENRY C. FRICK | Chief Engineer |
| Armstrong, S. W.; 1908 Lynn's; 1908 | 1908 Lynn's | 1908-00-00 | HENRY C. FRICK | Chief Engineer |
| Armstrong, S. W.; 1910 Red Book; 1910 | 1910 Red Book | 1910-00-00 | HENRY C. FRICK | Chief Engineer |
| Armstrong, S. W.; 1911 Red Book; 1911 | 1911 Red Book | 1911-00-00 | HENRY C. FRICK | Chief Engineer |
| Armstrong, S. W.; 1912 Red Book; 1912 | 1912 Red Book | 1912-00-00 | HENRY C. FRICK | Chief Engineer |
| Armstrong, S. W.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | GEORGE F. BAKER | Chief Engineer |