Cover photo for Donald L. Koester's Obituary
Donald L. Koester Profile Photo
1934 Donald 2021

Donald L. Koester

May 24, 1934 — April 8, 2021

Donald L. Koester, of O’Fallon, Missouri, passed away Thursday, April 8, 2021 at the age of 86. Beloved husband of the late Dorothy Rose Koester; cherished son of the late James and Venora Koester. Devoted father of Susan Mueller, Kathleen (Bob) Roberts, and the late Donald Koester; loving grandfather of Brian (Annie) Roberts, Amanda Roberts, Laura Noble, Jennifer (Zach) Lammers, and Jared Mueller; treasured great-grandfather of Joseph Roberts, Katie Roberts, Parker Lammers, and Cason Lammers; beloved uncle and friend.

Donald proudly served in the United States Army. Donald was dearly loved and will be greatly missed by all who knew him.

Memorials may be made in Donald's name to American Diabetes Assoc.

Due to the COVID-19 Pandemic Baue Funeral Homes does require all family members and guests to wear a mask while visiting our facilities. Social distancing is required, and guests should stay at least 6 feet apart. Thank you for your understanding.


To order memorial trees or send flowers to the family in memory of Donald L. Koester, please visit our flower store.

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Saturday, April 17, 2021

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