| Gregory, Clinton M.; 1966 Red Book; 1965 | 1966 Red Book | 1965-00-00 | ALPENA | Chief Engineer |
| Gregory, Clinton M.; 1967 Red Book; 1967 | 1967 Red Book | 1967-00-00 | ALPENA | Chief Engineer |
| Gregory, Clinton M.; 1968 Red Book; 1968 | 1968 Red Book | 1968-00-00 | SIDNEY E. SMITH JR. | Chief Engineer |
| Gregory, Clinton M.; 1969 Red Book; 1969 | 1969 Red Book | 1969-00-00 | SIDNEY E. SMITH JR. | Chief Engineer |
| Gregory, Clinton M.; 1970 Red Book; 1970 | 1970 Red Book | 1970-00-00 | SIDNEY E. SMITH JR. | Chief Engineer |
| Gregory, Clinton M.; 1971 Red Book; 1971 | 1971 Red Book | 1971-00-00 | SIDNEY E. SMITH JR. | Chief Engineer |