| Summerfield, Clayton; 1968 Red Book; 1968 | 1968 Red Book | 1968-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1969 Red Book; 1969 | 1969 Red Book | 1969-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1970 Red Book; 1970 | 1970 Red Book | 1970-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1971 Red Book; 1971 | 1971 Red Book | 1971-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1972 Red Book; 1972 | 1972 Red Book | 1972-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1973 Red Book; 1973 | 1973 Red Book | 1973-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1974 Red Book; 1974 | 1974 Red Book | 1974-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1975 Red Book; 1975 | 1975 Red Book | 1975-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1976 Red Book; 1976 | 1976 Red Book | 1976-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1977 Red Book; 1977 | 1977 Red Book | 1977-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1978 Red Book; 1978 | 1978 Red Book | 1978-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1979 Red Book; 1979 | 1979 Red Book | 1979-00-00 | AMOCO WISCONSIN | Chief Engineer |
| Summerfield, Clayton; 1980 Red Book; 1980 | 1980 Red Book | 1980-00-00 | AMOCO WISCONSIN | Chief Engineer |