| Clark, Harley A. | | | WILLIAM D. CRAWFORD | Chief Engineer |
| Clark, Harley A.; 1926 Blue Book; 1926 | 1926 Blue Book | 1926-00-00 | EDWARD A. UHRIG | First Assistant |
| Clark, Harley A.; 1930 Blue Book; 1930 | 1930 Blue Book | 1930-00-00 | WILLIAM A. AMBERG | First Assistant |
| Clark, Harley A.; 1934 Red Book; 1934 | 1934 Red Book | 1934-00-00 | CARLE C. CONWAY | Chief Engineer |
| Clark, Harley A.; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | WILLIAM D. CRAWFORD | Chief Engineer |
| Clark, Harley A.; 1939 Red Book; 1939 | 1939 Red Book | 1939-00-00 | WILLIAM D. CRAWFORD | Chief Engineer |
| Clark, Harley A.; 1940 Red Book; 1940 | 1940 Red Book | 1940-00-00 | GEORGE R. FINK | Chief Engineer |
| Clark, Harley A.; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | GEORGE R. FINK | Chief Engineer |
| Clark, Harley A.; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | GEORGE R. FINK | Chief Engineer |
| Clark, Harley A.; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | GEORGE F. FINK | Chief Engineer |
| Clark, Harley A.; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | GEORGE R. FINK | Chief Engineer |
| Clark, Harley A.; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | ALBERT E. HEEKIN | Chief Engineer |
| Clark, Harley A.; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | ALBERT E. HEEKIN | Chief Engineer |
| Clark, Harley A.; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | ALBERT E. HEEKIN | Chief Engineer |
| Clark, Harley A.; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | ALBERT E. HEEKIN | Chief Engineer |
| Clark, Harley A.; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | ALBERT E. HEEKIN | Chief Engineer |
| Clark, Harley A.; Great Lakes News 6/46; 1946 | Great Lakes News 6/46 | 1946-00-00 | ALBERT E. HEEKIN | Chief Engineer |