Bachelor in Architectural History, Reed College, Portland, Oregon, 1970; postgraduate, University of Pennsylvania, Philadelphia, 1972-1975; Master of Arts in Public Administration, University of Wisconsin, 1985; Doctor of Philosophy in Land Resources, University of Wisconsin, 1989.
Apprentice Paolo Soleri, Architect, Scottsdale, Arizona, 1970-1971. Staff planner Jack McCormick & Associates, Devon, Pennsylvania, 1972-1974. Natural resource planner Brown County Planning Commission, Green Bay, Wisconsin, 1976-1978.
Planning consultant Champ, Parish, Raasch, De Pere, 1978-1980. Policy analyst United States Environmental Protection Agency, Chicago, 1980-1981. Community service specialist Wisconsin Department Natural Resources, Madison, 1981-1985.
Chief environmental analysis Wisconsin Department Transportation, 1985-1986. Project manager Wade-Trim/Impact, Taylor, Michigan, 1987-1988. Owner, principal planner Mary Ann Heidemann & Associates, Rogers City, 1988-1997.
Vice president, planning group manager Wade-Trim Engineering, 1997-2000. Director Presque Isle County Economic Development Corporation, Rogers City, Michigan, since 2000. Assistant professor Kansas State University, Manhattan, 1975—1976.
Lecturer University Wisconsin, Green Bay, 1977—1978. Executive director East Michigan Environmental Action, West Bloomfield, 1986—1987. Adjunct professor Lake Superior State University, Sault Ste.
Marie, 1988—1995; member planner licensed board Governor State Michigan, Lansing, 1990—1994.
Founding member Bay Renaissance, Green Bay, 1979—1980. Member Orion Township Planning Commission, Michigan, 1986—1987. County commissioner Presque Isle County Board, Rogers City, 1992—1993.
Board directors Presque Isle Harbor Associates, 1993—1996. Chair Rogers City Park and Recreation Commission, since 2001. Elder Westminster Presbyterian Church, since 1997.
Member of American Association of University Women, Michigan Society Planning Officials (training workshop instructor), American Planning Association, American Institute Certified Planners (planning examination committee 1992), Presque Isle Lighthouse Association, Michigan Historic Preservation Network (board member since 2001), Harmony Choraleers.
Married Karl Werner, June 19, 1982. Children: Heather Lisa, Karl Kristoffer.