Klaus E. Harnack M.D., 92, of Schaumburg, Illinois. Loving husband of the late Ellen Harnack; devoted father of Michael Harnack and Steven (Helen) Harnack; cherished grandfather of Allison (Jacob) Huebert, Danielle Ellen, Jasmine Harnack, Nathaniel... View Obituary & Service Information
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Klaus E. Harnack M.D., 92, of Schaumburg, Illinois.
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