Mary (Guido) Mastroianni age 93, of Level Green passed away peacefully in her home on September 13, 2020. She was born in Gascola, PA on August 13, 1927. She was the wife of the late John P. Mastroianni. She is survived by her children Sheelan (Al) Cestra, Deborah (Geoffrey) Schnabel and Michael (Karen) Mastroianni; her beloved grandchildren and great-grandchildren Allison, Jim, Lily and Cooper Murray and Matthew, Dana, Juliet and Levi Mastroianni.  She is also survived by her sister Virginia Pietropola and her special niece and caretaker Elaine Drakulic.  Besides her husband, she was predeceased by her parents Eugene and Philomena Guido and 3 brothers John, Sylvester "Bunny" and Eugene "Pip" Guido.  She was a devout Christian and a long time member at Monroeville Christian Church. She had a servant's heart and never passed up an opportunity to help others.  Mary loved to bake and did so almost daily.    She also loved to play cards and belonged to many card clubs throughout her life.  She crocheted numerous afghans and gave them to everyone.  Her Grandchildren called them "Nana Blankets". She babysat her great-grandchildren well into her eighties.  Per her wishes there will not be a visitation but instead a celebration of her life will be held at Keystone Christian Church 5875 Washington St. in Export on Wednesday, September 16, 2020 at 10:30am.  The John M. Dobrinick Funeral Home Inc. Trafford is assisting the family with arrangements.  www.dobrinickfhinc.com