Mary Costello Obituary

We are sad to announce that on June 16, 2020, at the age of 67, Mary Costello of Gibsonia, Pennsylvania passed away. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.

She was predeceased by: her parents, Robert Markel and Regina Berney Markel; and her brother Matthew Markel (Dana). She is survived by: her daughters, Erin Costello (John Baker) and Kathleen Costello; her granddaughter Nora Baker; her siblings, Christine Stumm (Charles), Cecily Lukas (Craig), Nancy Elsasser (Robert), Daniel Markel (Kathleen) and James Markel (Ana Paula); and her former husband Mark Costello.

Our family wishes memorial contributions be made to Heifer International, our mother's favorite charity.