Mary Grace O’Brien

Age 93, of Penn Hills, Passed away Thursday January 7, 2021. Beloved wife of the Late John T O’Brien; mother of John (Lori), Gary, Steve (Sandy), and Dave (Lori) O’Brien; grandmother of Michael, Jennifer, Christina, Greg, and Breanna; great-grandmother of Madison, Alexis, Aiden, Declan, Maci, Mary Grace, Shaelyn, Rylie, Everly, Izabella, Kayla, Claire, and Hannah. In lieu of flowers please consider a memorial donation to the American Heart Association, 444 Liberty Ave #1300, Pittsburgh, PA 15222.

Family and friends will be received at William F. Gross Funeral Home at 11735 Frankstown Road (at Rodi Road) in Penn Hills on Monday, January 11, 2021 from 2 p.m. until 8 p.m. A funeral service will be held at the funeral home Tuesday, January 12, 2021 at 11 a.m.. We will be following COVID-19 state guidelines.