Dorothy M. Zimmerman

Dorothy M. Zimmerman, age 96, of Crescent Twp, passed away on Monday, January 20, 2025 at Heritage Valley Sewickley. Beloved mother of Sandy (Arthur) Stiffler, Robert (Michele) Irion, Joni (Irion) Tajc, Fred (Tammy) Irion, and the late Dennis Irion and Karen (Irion) Schulenburg. Sister of George Ostapchenko, and the late John, Alex, Albert, Joseph and Frankie Ostapchenko and Marge Oberleitner. Loving grandmother of Heather Irion, Heidi Young, Jamie Richardson, Robert Stiffler, Caitlin Schweighardt, Carli DeVito, Robert Irion, Kimberly Irion, John Schulenburg and the late Jessica Erb. Dear great-grandmother of Kenny Young, Joshua Messer, Alexa Richardson, Michael Richardson, Brayden DeVito and Ricky Erb. Also survived by one great-great grandchild. Dorothy enjoyed her beautiful flowers and watching the birds. Friends will be received at the R.D. Copeland Funeral Home, Inc, 981 Brodhead Road, Moon Twp on Thursday from 4 - 8 pm. A funeral service will be held at the funeral home on Friday at 10 am followed by burial at the Coraopolis Cemetery.

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