Age 82, of Shaler Township, formerly of Lawrenceville, on Monday, October 18, 2021. Beloved mother of Renee M. (Siwicki) Heininger; loving grandma "Bubba" of Madison Ann Heininger and Mason David Heininger; sister of Lorraine (Poslusney) Nusser and Catherine (Poslusney) Celender; also survived by nieces and nephews. Barbara was a retiree of the Associates Commercial Corporation. In her retirement, she worked for the Catholic Funeral Plan. Barbara was an avid Pittsburgh Steeler fan. Family and friends are welcomed at the WALTER J. ZALEWSKI FUNERAL HOME, 216 44th Street, Lawrenceville, on Thursday, October 21, 2021 and Friday, October 22, 2021 from 2-4 and 6-8 p.m. Funeral Mass at Christ the King Parish, St. Mary Church on Saturday, October 23, 2021 at 10:00 a.m. In lieu of flowers, memorial contributions can be made to the St. Margaret Foundation, 815 Freeport Road, 100 Medical Arts Building, Suite 112, Pittsburgh, PA 15215 or stmargaretfoundation.org .