| Leffellad, John H. | | | COLONEL JAMES PICKANDS | Chief Engineer |
| Leffellad, John H.; 1956 Red Book; 1956 | 1956 Red Book | 1956-00-00 | ADRIATIC | Chief Engineer |
| Leffellad, John H.; 1957 Red Book; 1957 | 1957 Red Book | 1957-00-00 | JOSEPH SELLWOOD | Chief Engineer |
| Leffellad, John H.; 1960 Red Book; 1960 | 1960 Red Book | 1960-00-00 | PATHFINDER | Chief Engineer |
| Leffellad, John H.; 1962 Red Book; 1962 | 1962 Red Book | 1962-00-00 | COLONEL JAMES PICKANDS | Chief Engineer |
| Leffellad, John H.; 1964 Red Book; 1964 | 1964 Red Book | 1964-00-00 | WILLIAM MCLAUCHLAN | Chief Engineer |
| Leffellad, John H.; 1965 Red Book; 1965 | 1965 Red Book | 1965-00-00 | WALTER E. WATSON | Chief Engineer |
| Leffellad, John H.; 1966 Red Book; 1965 | 1966 Red Book | 1965-00-00 | WALTER E. WATSON | Chief Engineer |
| Leffellad, John H.; 1967 Red Book; 1967 | 1967 Red Book | 1967-00-00 | WALTER E. WATSON | Chief Engineer |
| Leffellad, John H.; 1968 Red Book; 1968 | 1968 Red Book | 1968-00-00 | HARRY COULBY | Chief Engineer |
| Leffellad, John H.; 1969 Red Book; 1969 | 1969 Red Book | 1969-00-00 | HARRY COULBY | Chief Engineer |
| Leffellad, John H.; 1970 Red Book; 1970 | 1970 Red Book | 1970-00-00 | HARRY COULBY | Chief Engineer |
| Leffellad, John H.; Interlake Log August 1972 | Interlake Log August 1972 | 1972-00-00 | HARRY COULBY | Chief Engineer |
| Leffellad, John H.; Interlake Log May 1950 | Interlake Log May 1950 | 1950-00-00 | ROBERT HOBSON | First Assistant |
| Leffellad, John H.; Interlake Log May 1952 | Interlake Log May 1952 | 1952-00-00 | CHARLES M. SCHWAB | First Assistant |
| Leffellad, John H.; Interlake Log November 1959 | Interlake Log November 1959 | 1959-00-00 | JOSEPH SELWOOD | Chief Engineer |
| Leffellad, John H.; Interlake Log Sept 1946 | Interlake Log Sept 1946 | 1946-00-00 | AMASA STONE | First Assistant |
| Leffellad, John H.; Interlake Log Sept 1946 | Interlake Log Sept 1946 | 1946-00-00 | ODANAH | First Assistant |