Dr. Klaus E. Harnack M.D. of Schaumburg
August 11, 1928 - November 30, 2020
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
