William I. Kleffman, age 84, formerly of Glen Carbon, IL, passed away at 12:10 pm on Sunday, September 27, 2020, in Kirkwood, MO. Bill was born on December 7, 1935, in Edwardsville, IL, the son of the late William J. & Dorthy E. (Keubler) Kleffman.... View Obituary & Service Information