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Mary Lou Terreri

March 12, 1949 - May 11, 2026

Text:

Obituary For Mary Lou Terreri

Age 77, of Whitehall, passed away on Monday, May 11, 2026.

Beloved wife of 40 years to John J. Terreri; loving mother of Karen (Thomas) Lear, Kimberly (Michelle Wood) Schneider, Dawn (Michael) Stamm and Johnny (Carina Iannarelli) Terreri; caring stepmother of Ellen (Jack) Micenko and Peggy (Eric) Prosseda; adoring Lou Lou of Alyssa, Megan, Madison, Mason, Caylyn, Michael, Maddox, Olivia, Caroline, Dante, Julian, Roman, Luca, Nina and Stella; daughter of the late Robert and Catherine Schneider; sister of Bernard (Eileen) Schneider, Joseph (Doug Caldwell) Schneider and the late Margaret Piso, Robert Schneider and John "Jack" Schneider. Also survived by several loving nieces and nephews. Being a mother and grandmother was Mary Lou's true passion and purpose in life. She was a pioneer as a woman in the automotive parts industry as President, Owner and Operator of U.S. of A., Inc. She will be deeply missed and carried in the hearts of all who knew and loved her. Friends will be received at the John F. Slater Funeral Home, Inc., 412-881-4100, 4201 Brownsville Road, Brentwood 15227 on Thursday, May 14, 2026 from 2-7p.m. In lieu of flowers, the family suggests contributions to the charity of your choice in Mary Lou's honor.

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Tributes

  • 5 TREES

    The Coven planted 5 trees in memory of Mary Lou Terreri . - May 12, 2026

  • 10 TREES

    your friends at Germain planted 10 trees in memory of Mary Lou Terreri . - May 12, 2026

Condolences

  • May 12, 2026

    Karen Bright

    So very sorry to hear of Mary Lou's passing. I always enjoyed being in her company and talking with her when we were all at Dennis & Suzanne's house. My sincere sympathy to all.

  • May 12, 2026

    Elaine Brown

    I was so sorry to hear about Marylou we were grade school friends. Many happy memories of us growing up together. I would see her and her daughters at Eat N Park where I worked.My deepest sympathy to her family.

  • May 12, 2026

    Diane Miller

    So very sorry to hear of Mary Lous passing ..My deepest condolence to the family God Bless{ Diane Miller [. Elaines sister]

  • May 12, 2026

    Kara Kunz

    Dear Joe, Doug, and family, Mary Lou was such a generous person. And funny and an amazing baker. We will miss her pizzelles! She was such a force for good and will be sorely missed! Love, Kara and David Kunz

  • May 12, 2026

    Maryann Naile

    Wishing you peace and comfort as you navigate this challenging time. My heart goes out to you and your families.

  • May 12, 2026

    Chris & Marie Caldwell

    Dear Joe and the family of Mary Lou- Marie and I offer our prayers and sincere condolences for the loss of your sister, wife, mother and so many other important roles Mary Lou filled during her journey on earth.

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