| Armstrong, H. O.; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | MARITANA | Chief Engineer |
| Armstrong, H. O.; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | MARICOPA | Chief Engineer |
| Armstrong, H. O.; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | MARICOPA | Chief Engineer |
| Armstrong, H. O.; 1926 Red Book | 1926 Red Book | | MARICOPA | Chief Engineer |
| Armstrong, H. O.; 1927 Red Book; 1927 | 1927 Red Book | 1927-00-00 | MARICOPA | Chief Engineer |
| Armstrong, H. O.; 1928 Red Book; 1928 | 1928 Red Book | 1928-00-00 | MARICOPA | Chief Engineer |
| Armstrong, H. O.; 1929 Red Book; 1929 | 1929 Red Book | 1929-00-00 | MARICOPA | Chief Engineer |
| Armstrong, H. O.; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | CLARENCE A. BLACK | Chief Engineer |
| Armstrong, H. O.; 1931 Red Book; 1931 | 1931 Red Book | 1931-00-00 | CLARENCE A. BLACK | Chief Engineer |
| Armstrong, H. O.; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | ELBERT H. GARY | Chief Engineer |
| Armstrong, H. O.; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | GEORGE F. BAKER | Chief Engineer |
| Armstrong, H. O.; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | GEORGE F. BAKER | Chief Engineer |
| Armstrong, H. O.; 1938 Red Book; 1938 | 1938 Red Book | 1938-00-00 | GEORGE F. BAKER | Chief Engineer |
| Armstrong, H. O.; 1939 Red Book; 1939 | 1939 Red Book | 1939-00-00 | J. P. MORGAN JR. | Chief Engineer |
| Armstrong, H. O.; Great Lakes News 2/21; 1921 | Great Lakes News 2/21 | 1921-00-00 | GEORGE F. BAKER | First Assistant |