| Walker, Roy; 1934 Red Book; 1934 | 1934 Red Book | 1934-00-00 | E. C. POPE | Chief Engineer |
| Walker, Roy; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | E. C. POPE | Chief Engineer |
| Walker, Roy; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | E. C. POPE | Chief Engineer |
| Walker, Roy; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | E. C. POPE | Chief Engineer |
| Walker, Roy; 1938 Red Book; 1938 | 1938 Red Book | 1938-00-00 | E. C. POPE | Chief Engineer |
| Walker, Roy; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | CHARLES DONNELLY | Chief Engineer |
| Walker, Roy; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | CHARLES DONNELLY | Chief Engineer |
| Walker, Roy; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | STEEL KING | Chief Engineer |
| Walker, Roy; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | STEEL KING | Chief Engineer |
| Walker, Roy; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | STEEL KING | Chief Engineer |
| Walker, Roy; 1946 Red Book; 1946 | 1946 Red Book | 1946-00-00 | CANOPUS | Chief Engineer |
| Walker, Roy; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | CANOPUS | Chief Engineer |
| Walker, Roy; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | CANOPUS | Chief Engineer |
| Walker, Roy; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | CANOPUS | Chief Engineer |
| Walker, Roy; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | SONORA | Chief Engineer |
| Walker, Roy; Great Lakes News 10/40; 1940 | Great Lakes News 10/40 | 1940-00-00 | CHARLES DONNELLY | Chief Engineer |
| Walker, Roy; Great Lakes News 3/40; 1940 | Great Lakes News 3/40 | 1940-00-00 | E. C. POPE | Chief Engineer |
| Walker, Roy; Great Lakes News 5/39; 1939 | Great Lakes News 5/39 | 1939-00-00 | E. C. POPE | Chief Engineer |