Background
Heidenerich, John Louis was born on August 14, 1945 in Freeport, Illinois, United States.
Heidenerich, John Louis was born on August 14, 1945 in Freeport, Illinois, United States.
Bachelor of Science in Physics and Math, Western Illinois University, 1967.
Evaluation laboratory engineer micro-switch division Honeywell, Freeport, 1968-1969. Senior technician Hills McCanna Company, Carpentersville, Illinois, 1970-1972, assistant supervisor engineering laboratory, 1972-1974, quality control engineer, 1974-1975, manager quality assurance/quality control, 1975-1980, director quality assurance, 1980. Vice president North Carolina Kist & Associates, Inc., Naperville, Illinois, since 1980.