| Jacobsen, L.; 1956 Red Book; 1956 | 1956 Red Book | 1956-00-00 | CHICAGO SOCONY | Chief Engineer |
| Jacobsen, L.; 1957 Red Book; 1957 | 1957 Red Book | 1957-00-00 | CHICAGO SOCONY | Chief Engineer |
| Jacobsen, L.; 1958 Red Book; 1958 | 1958 Red Book | 1958-00-00 | CHICAGO SOCONY | Chief Engineer |
| Jacobsen, L.; 1959 Red Book; 1959 | 1959 Red Book | 1959-00-00 | CHICAGO SOCONY | Chief Engineer |
| Jacobsen, L.; 1960 Red Book; 1960 | 1960 Red Book | 1960-00-00 | CHICAGO SOCONY | Chief Engineer |
| Jacobsen, L.; 1961 Red Book; 1961 | 1961 Red Book | 1961-00-00 | CHICAGO SOCONY | Chief Engineer |
| Jacobsen, L.; 1962 Red Book; 1962 | 1962 Red Book | 1962-00-00 | CHICAGO SOCONY | Chief Engineer |