Age 88, of Upper St. Clair, on Tuesday, April 20, 2021. Beloved wife of the late James F. Kennedy, Jr. Daughter of the late Alexander and Dorothy (Schubert) Serke; loving mother of Jean (Scott) Santomo, James (Kathleen) Kennedy, Robert (Laurel) Kennedy, Maureen (late Michael) Joyce; dear grandmother of Bonnie (Mitchell) Weidner, Katie (Paul) Seiferth, Raymond, Alexander, James, Julie, Emily, Robert; great grandmother of Natalia, Vincent, Olivia Lou. Mary Lou was a graduate of California University of Pennsylvania and St. Francis as a Registered Nurse having worked for many years, but especially she loved being a mother and grandmother. Friends welcome THURSDAY 1-3, 6-8pm, Freyvogel-Slater Funeral Directors (412-835-1860), 112 Fort Couch Rd, Bethel Park (Opposite Macy's South Hills Village). Mass of Christian Burial 10:00a.m. FRIDAY, Resurrection Parish-St. Thomas More Church. www.slaterfuneral.com