Grace E. Kieffer, age 86 of Shaler Township, on June 19, 2022. Daughter of the late Michael and Ella Stoner. Grace is survived by her sister, Diana McClellan (Clay) and her brother, Michael Stoner. Wife of the late Charles Kieffer, and former wife of the late Homer Mast. Beloved mother of Glenn Mast (Julie), and grandmother of Joseph and Michael Mast. Grace was born on April 9, 1936. She grew up on Troy Hill, and worked for many years at the G. C. Murphy Co. in downtown Pittsburgh. No Visitation, service and interment private To to the family or in memory of Grace E. Kieffer, please