| Christensen, H. E.; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | JOHN IRWIN | Chief Engineer |
| Christensen, H. E.; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | JOHN IRWIN | Chief Engineer |
| Christensen, H. E.; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | JOHN IRWIN | Chief Engineer |
| Christensen, H. E.; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | JOHN IRWIN | Chief Engineer |
| Christensen, H. E.; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | JOHN IRWIN | Chief Engineer |
| Christensen, H. E.; 1952 Red Book; 1952 | 1952 Red Book | 1952-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1953 Red Book; 1953 | 1953 Red Book | 1953-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1954 Red Book; 1954 | 1954 Red Book | 1954-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1955 Red Book; 1955 | 1955 Red Book | 1955-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1958 Red Book; 1958 | 1958 Red Book | 1958-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1959 Red Book; 1959 | 1959 Red Book | 1959-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1960 Red Book; 1960 | 1960 Red Book | 1960-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1961 Red Book; 1961 | 1961 Red Book | 1961-00-00 | GASPEDOC | Chief Engineer |
| Christensen, H. E.; 1962 Red Book; 1962 | 1962 Red Book | 1962-00-00 | GASPEDOC | Chief Engineer |