John M. Kostrey M.D. Obituary
The memory of John M. Kostrey M. D. (DeKalb, Illinois), who passed away on March 8, 2026 at the age of 91, will forever remain in the hearts of those touched by this precious presence in their lives. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
He is survived by: his wife Mildred (Millie); his children, Elizabeth Hall (Andrew), Julie Kostrey, Allison Hapeman (Timothy) and John Kostrey (Michael Golterman); his grandsons, Ian, Miles, Lucas Hall, Lawrence, Calvin, Samson, Amos Hapeman and Charles Kostrey; and his sister Anna.
In lieu of flowers, memorial contributions may be made to St. Jude Children's Research Hospital https://www.stjude.org. or a charity of your choice.
