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Mary Koch Heintz — Hansen-Spear – Muddy River News

Summary by Muddy River News
Mary Elizabeth Heintz, age 85, died on December 23, 2024, in her home in Fond du Lac, WI. She was born on March 11, 1939, in Quincy IL, a daughter of Frederick W. and Lousie H. Spindler Koch. Like all of the Koch siblings, Mary worked at their father’s business, the Illinois School Supply when she was young. She loved working, and her first job as an optician was at Lammers Optical in Quincy, IL. After raising her children, she went back to work…
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Muddy River News broke the news in on Friday, June 6, 2025.
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