| Stewart, Robert C.; 1911 Red Book; 1911 | 1911 Red Book | 1911-00-00 | NORTHERN KING | Chief Engineer |
| Stewart, Robert C.; 1912 Red Book; 1912 | 1912 Red Book | 1912-00-00 | NORTHERN KING | Chief Engineer |
| Stewart, Robert C.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | NORTHERN KING | Chief Engineer |
| Stewart, Robert C.; 1914 Red Book; 1914 | 1914 Red Book | 1914-00-00 | NORTHERN KING | Chief Engineer |
| Stewart, Robert C.; 1915 Red Book; 1915 | 1915 Red Book | 1915-00-00 | NORTHERN KING | Chief Engineer |
| Stewart, Robert C.; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | NORTHERN KING | Chief Engineer |
| Stewart, Robert C.; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | UNDERWOOD | Chief Engineer |
| Stewart, Robert C.; 1921 Red Book; 1921 | 1921 Red Book | 1921-00-00 | BUFFALO | Chief Engineer |
| Stewart, Robert C.; 1922 Red Book; 1922 | 1922 Red Book | 1922-00-00 | BUFFALO | Chief Engineer |
| Stewart, Robert C.; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | BUFFALO | Chief Engineer |
| Stewart, Robert C.; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | BUFFALO | Chief Engineer |
| Stewart, Robert C.; 1926 Red Book | 1926 Red Book | | P. E. CROWLEY | Chief Engineer |
| Stewart, Robert C.; 1927 Red Book; 1927 | 1927 Red Book | 1927-00-00 | P. E. CROWLEY | Chief Engineer |
| Stewart, Robert C.; 1928 Red Book; 1928 | 1928 Red Book | 1928-00-00 | P. E. CROWLEY | Chief Engineer |
| Stewart, Robert C.; 1929 Red Book; 1929 | 1929 Red Book | 1929-00-00 | P. E. CROWLEY | Chief Engineer |