| Schwenk, J.; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | HUMBERDOC | Chief Engineer |
| Schwenk, J.; 1952 Red Book; 1952 | 1952 Red Book | 1952-00-00 | HUMBERDOC | Chief Engineer |
| Schwenk, J.; 1953 Red Book; 1953 | 1953 Red Book | 1953-00-00 | HUMBERDOC | Chief Engineer |
| Schwenk, J.; 1954 Red Book; 1954 | 1954 Red Book | 1954-00-00 | HUMBERDOC | Chief Engineer |
| Schwenk, J.; 1956 Red Book; 1956 | 1956 Red Book | 1956-00-00 | LACHINEDOC | Chief Engineer |
| Schwenk, J.; 1957 Red Book; 1957 | 1957 Red Book | 1957-00-00 | LACHINEDOC | Chief Engineer |
| Schwenk, J.; 1958 Red Book; 1958 | 1958 Red Book | 1958-00-00 | LACHINEDOC | Chief Engineer |
| Schwenk, J.; 1959 Red Book; 1959 | 1959 Red Book | 1959-00-00 | LACHINEDOC | Chief Engineer |
| Schwenk, J.; 1960 Red Book; 1960 | 1960 Red Book | 1960-00-00 | LACHINEDOC | Chief Engineer |
| Schwenk, J.; 1962 Red Book; 1962 | 1962 Red Book | 1962-00-00 | CANADOC | Chief Engineer |
| Schwenk, J.; 1963 Red Book; 1963 | 1963 Red Book | 1963-00-00 | CANADOC | Chief Engineer |
| Schwenk, J.; 1964 Red Book; 1964 | 1964 Red Book | 1964-00-00 | CANADOC | Chief Engineer |
| Schwenk, J.; 1965 Red Book; 1965 | 1965 Red Book | 1965-00-00 | CANADOC | Chief Engineer |
| Schwenk, J.; 1966 Red Book; 1965 | 1966 Red Book | 1965-00-00 | CANADOC | Chief Engineer |
| Schwenk, J.; 1967 Red Book; 1967 | 1967 Red Book | 1967-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1968 Red Book; 1968 | 1968 Red Book | 1968-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1969 Red Book; 1969 | 1969 Red Book | 1969-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1970 Red Book; 1970 | 1970 Red Book | 1970-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1971 Red Book; 1971 | 1971 Red Book | 1971-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1972 Red Book; 1972 | 1972 Red Book | 1972-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1973 Red Book; 1973 | 1973 Red Book | 1973-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1974 Red Book; 1974 | 1974 Red Book | 1974-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1975 Red Book; 1975 | 1975 Red Book | 1975-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1976 Red Book; 1976 | 1976 Red Book | 1976-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1977 Red Book; 1977 | 1977 Red Book | 1977-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1978 Red Book; 1978 | 1978 Red Book | 1978-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1979 Red Book; 1979 | 1979 Red Book | 1979-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1980 Red Book; 1980 | 1980 Red Book | 1980-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1981 Red Book; 1981 | 1981 Red Book | 1981-00-00 | MANTADOC | Chief Engineer |
| Schwenk, J.; 1982 Red Book; 1982 | 1982 Red Book | 1982-00-00 | MANTADOC | Chief Engineer |