| Irwin, Harry D.; 1907 Red Book; 1907 | 1907 Red Book | 1907-00-00 | SOO CITY | Chief Engineer |
| Irwin, Harry D.; 1908 Lynn's; 1908 | 1908 Lynn's | 1908-00-00 | SOO CITY | Chief Engineer |
| Irwin, Harry D.; 1909 Red Book; 1909 | 1909 Red Book | 1909-00-00 | UNITED STATES | Chief Engineer |
| Irwin, Harry D.; 1910 Red Book; 1910 | 1910 Red Book | 1910-00-00 | UNITED STATES | Chief Engineer |
| Irwin, Harry D.; 1911 Red Book; 1911 | 1911 Red Book | 1911-00-00 | UNITED STATES | Chief Engineer |
| Irwin, Harry D.; 1912 Red Book; 1912 | 1912 Red Book | 1912-00-00 | UNITED STATES | Chief Engineer |
| Irwin, Harry D.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | THEODORE ROOSEVELT | Chief Engineer |
| Irwin, Harry D.; 1914 Red Book; 1914 | 1914 Red Book | 1914-00-00 | THEODORE ROOSEVELT | Chief Engineer |
| Irwin, Harry D.; 1915 Red Book; 1915 | 1915 Red Book | 1915-00-00 | THEODORE ROOSEVELT | Chief Engineer |
| Irwin, Harry D.; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | THEODORE ROOSEVELT | Chief Engineer |