Mary Margaret Derse
Born to Eternal Life on Thursday, December 18, 2025. Age 94. Beloved daughter of the late Winfield and Marguerite Derse. Dear sister of the late Joan Siordia (nee Derse) and the late James Derse. Also loved by cousins, other relatives and friends.
Mary taught for 30 years for Milwaukee Public Schools, including many years teaching 1st grade at Keefe Avenue School. She enjoyed many trips to Florida and summers at her family’s home on Big Cedar Lake where she loved all water sports.
Visitation at St. Catherine of Alexandria Catholic Church, 8661 North 76th Place, Milwaukee, Wisconsin, on Monday, January 5th, 2026, from 10:00 AM – 11:00 AM. Funeral Mass to follow at 11:00 AM. Entombment at Holy Cross Cemetery.
In lieu of flowers, memorials in Mary’s memory to the Marquette University or St. Catherine of Alexandria Catholic Church appreciated.
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