Mary Frances Lerch

July 21, 1930 - November 16, 2025

Visitation: Friday, 2-8PM, Devlin Funeral Home, Inc. 806 Perry Hwy., Pgh, PA 15229

Service: Saturday, 11AM, St. Teresa of Avila Church, 800 Avila Ct., Pgh, PA 15237

Mary Frances (O'Byrne)
Age 95, of Ross Twp., died Sunday, November 16, 2025. Wife of the late Maurie Lerch; Loving mother of Stephen (Renee) Lerch, Marty (Ginger) Lerch, Mark (Lorraine) Lerch, John (Kimberly) Lerch, Jeannie (Ray) Wattras, Cathy (Geoffrey) Dalbow and Linda (Brad) Forrester; proud grandmother of Colin, Lauren, the late Greg, Melanie, Mary Frances, Shannon, Stephen, Rick, Tara, Jonathan, Kylie, Brendan, Connor and Trinity, Kerry; great-grandmother of Dante, Alex, Andrew, Hallie Jo, Sage, Spencer; Mary Frances is also survived by many loving relatives and friends.

Mary Fran was born in Chicago and graduated from Clarke College in Dubuque, majoring in both Chemistry and Journalism. After her marriage to Maurie, and the birth of their first child, they moved to North Hills and joined St Teresa Church where she has been a parishioner since 1954. Mary Fran was very active in the Parish over the years, from music, to PTG, Christian Mothers, CCD, St Teresa School volunteer and her many years as a lector. After raising seven children, she went back to work at Duquesne University, serving as Academic Advisor in the Psychology Department. Mary loved music and singing, was a voracious reader and enjoyed difficult crossword puzzles. But most of all, she was a woman of faith who loved her family, relished her role as wife, mother, grandmother and great grandmother. Quick to kindness, constantly encouraging, always a brilliant teacher, and mindful of the importance of setting a good example by living her faith, Mary Fran was a true matriarch who leaves an amazing family legacy.

Friends will be received Friday from 2-8PM at DEVLIN FUNERAL HOME, INC. 806 Perry Hwy., Pgh, PA 15229 A Mass of Christian Burial Saturday 11AM in St. Teresa of Avila Church (Our Lady of Mt. Carmel Parish) 800 Avila Ct., Pgh, PA 15237. Everyone is asked to please meet at church. In lieu of flowers, memorial contributions may be made to Our Lady of Mount Carmel Music Ministry. The family would like to thank the staff at Vincentian 4-1 and Bridges Hospice for their kind and compassionate care.