Background
Helker, Mary Jo was born on March 31, 1953 in Platteville, Wisconsin, United States. Daughter of James Warren and Mae Leona Knautz.
Helker, Mary Jo was born on March 31, 1953 in Platteville, Wisconsin, United States. Daughter of James Warren and Mae Leona Knautz.
Bachelor of Science, University of Wisconsin, Platteville, 1986; Master of Science, University of Wisconsin, Platteville, 1987.
Technical representative, Lab Safety Supply, Janesville, Wisconsin, 1987-1988; compliance engineer, Sub Zero Freezer Company, Madison, Wisconsin, since 1988.
Member Federation Environmental Technologies, National Safety Council, Wisconsin Safety Council, Association Home Appliances Manufacturers (task force CFC reduction since 1988), Air Quality Studies Coalition, National Association Manufacturers, Arizona Association Industries.
Married David George Helker, December 17, 1976 (divorced 1989). Children: Tiffani, Matthew, Kristin.