| Hedman, Roy; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1946 Red Book; 1946 | 1946 Red Book | 1946-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1952 Red Book; 1952 | 1952 Red Book | 1952-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1953 Red Book; 1953 | 1953 Red Book | 1953-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1954 Red Book; 1954 | 1954 Red Book | 1954-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1955 Red Book; 1955 | 1955 Red Book | 1955-00-00 | ROCKET | Chief Engineer |
| Hedman, Roy; 1956 Red Book; 1956 | 1956 Red Book | 1956-00-00 | ROCKET | Chief Engineer |