| Conlen, Robert; 1930 Blue Book; 1930 | 1930 Blue Book | 1930-00-00 | JOSHUA A. HATFIELD | First Assistant |
| Conlen, Robert; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | MARICOPA | Chief Engineer |
| Conlen, Robert; 1931 Blue Book; 1931 | 1931 Blue Book | 1931-00-00 | JOSHUA A. HATFIELD | First Assistant |
| Conlen, Robert; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | SAMUEL F. B. MORSE | Chief Engineer |
| Conlen, Robert; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | SAMUEL F. B. MORSE | Chief Engineer |
| Conlen, Robert; 1939 Red Book; 1939 | 1939 Red Book | 1939-00-00 | HENRY H. ROGERS | Chief Engineer |
| Conlen, Robert; 1940 Red Book; 1940 | 1940 Red Book | 1940-00-00 | HENRY H. ROGERS | Chief Engineer |
| Conlen, Robert; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | HENRY H. ROGERS | Chief Engineer |
| Conlen, Robert; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | WILLIAM J. OLCOTT | Chief Engineer |
| Conlen, Robert; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | JOSHUA A. HATFIELD | Chief Engineer |
| Conlen, Robert; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | JOSHUA A. HATFIELD | Chief Engineer |
| Conlen, Robert; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | HORACE JOHNSON | Chief Engineer |
| Conlen, Robert; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | ROBERT C. STANLEY | Chief Engineer |
| Conlen, Robert; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | ROBERT C. STANLEY | Chief Engineer |
| Conlen, Robert; 5/48 Great Lakes Review; 1948 | 5/48 Great Lakes Review | 1948-00-00 | HORACE JOHNSON | Chief Engineer |
| Conlen, Robert; Great Lakes News 2/21; 1921 | Great Lakes News 2/21 | 1921-00-00 | HARVARD | First Assistant |
| Conlen, Robert; Great Lakes News 9/46; 1946 | Great Lakes News 9/46 | 1946-00-00 | JOSHUA A. HATFIELD | Chief Engineer |
| Conlen, Robert; LCA/GLPA Bulletin, 6/43; 1943 | LCA/GLPA Bulletin, 6/43 | 1943-00-00 | WILLIAM J. OLCOTT | Chief Engineer |