Katherine Heckert (nee Mueller), beloved wife for 67 years of the late Karl; devoted mother of Erna (Terry) Bachara, Gerhard (the late Maryann) and Rick Heckert; loving daughter of the late Adam and Anna Mueller; dear sister of Maria (Herwig) Weyer, dear oma of Michael (Gina), Mark (Cindy), Matthew (Lisa), Max (Nicole), Ryan and Jessica (Matt), great oma of Frank, Gabriella, Zachary, Alexa, Carly, Jacob, Isabella, Jenna, Mason, Madison and Carson. Funeral Monday, family and friends are asked to gather 9:00 a.m. at St. Philip the Apostle Church 1223 W. Holtz, Ave. Addison, IL. Mass will begin at 10:00 a.m. Interment Maryhill Cemetery.