| Roberts, Harry | | | E. L. WALLACE | Chief Engineer |
| Roberts, Harry; 1914 Red Book; 1914 | 1914 Red Book | 1914-00-00 | E. L. WALLACE | Chief Engineer |
| Roberts, Harry; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | CENTURION | Chief Engineer |
| Roberts, Harry; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | DAVID Z. NORTON | Chief Engineer |
| Roberts, Harry; 1919 Red Book; 1919 | 1919 Red Book | 1919-00-00 | DAVID Z. NORTON | Chief Engineer |
| Roberts, Harry; 1920 Red Book; 1920 | 1920 Red Book | 1920-00-00 | DAVID Z. NORTON | Chief Engineer |
| Roberts, Harry; 1921 Red Book; 1921 | 1921 Red Book | 1921-00-00 | DAVID Z. NORTON | Chief Engineer |
| Roberts, Harry; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | DAVID Z. NORTON | Chief Engineer |
| Roberts, Harry; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | DAVID Z. NORTON | Chief Engineer |
| Roberts, Harry; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | HOWARD M. HANNA JR. | Chief Engineer |
| Roberts, Harry; 1926 Red Book | 1926 Red Book | | JOSEPH H. FRANTZ | Chief Engineer |
| Roberts, Harry; 1927 Red Book; 1927 | 1927 Red Book | 1927-00-00 | JOSEPH H. FRANTZ | Chief Engineer |
| Roberts, Harry; 1928 Red Book; 1928 | 1928 Red Book | 1928-00-00 | JOSEPH H. FRANTZ | Chief Engineer |
| Roberts, Harry; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | JOSEPH H. FRANTZ | Chief Engineer |
| Roberts, Harry; 1931 Red Book; 1931 | 1931 Red Book | 1931-00-00 | JOSEPH H. FRANTZ | Chief Engineer |