Thelma “Tee” A. Mamula, 92, formerly of Monaca and Vanport, passed away peacefully on September 2nd, 2025, at her daughter Kelli’s home in Butler. She was born in Monaca, a daughter of the late Allen “Doc” and Thelma (Llewellyn) Henry. In addition to her parents, she was preceded in death by her beloved husband, Sam Mamula, her daughter, Cindy Johnston, her son, Scott Baker, and her granddaughter, Amanda. She was the last of her immediate family and was also preceded in death by her siblings: Jean (Fred) Johnson, Doris (Ray) Conley, Barbara (Tom) Ely and Ronald (Roberta) Henry. She is survived by her devoted children: David Wayne (Donna) Johnston, Robert Baker, Michael (Bobbie) Baker, and Kelli Jo (Tony) Mason. She was the proud grandmother to Krystle, Brandon, Jay, Angie, Carrie, Tracey, Nicole, and Jacob. Her joy was multiplied sevenfold by her great-grandchildren. In addition to her immediate family, she leaves behind a wide circle of nieces, nephews, and friends. Her memory will be forever held in the hearts of her children, grandchildren, great-grandchildren, siblings, and a multitude of friends and acquaintances whose lives she touched.
Thelma began her working career as a long-distance telephone operator for Bell Telephone Company and later served the public as a meter maid for the Monaca Parking Authority and at the Beaver County Courthouse in the Recorder of Deeds Office. She concluded her career as an advisor for HAP, retiring in 1999 after years of exemplary service. She was also deeply involved in her community and church. She was a longtime member of the Monaca United Methodist Church, she actively participated in the SMOs (Senior Methodist Organization), the CLIPS class, Methodist Women, and the church choir. Her faith was also expressed through her service as a Sunday School teacher and her participation on the church bowling team. Her desire to give back to her community was evident in her volunteer work with the Crimson Line at the former Beaver County Geriatric Center. She found joy in exercising at the Beaver County YMCA and enjoyed being a member of the Speyer Avenue Card Club.
Thelma’s life will be celebrated with her family on Thursday, September 4th from 2-4 P.M. and 6-8 P.M. at SIMPSON FUNERAL & CREMATION SERVICES, 1119 Washington Avenue, Monaca, who was in charge of her arrangements, and where services will be held on Friday, September 5th at 11 A.M. with Chaplain Terrance of Grane Hospice officiating. Interment will follow in Sylvania Hills Memorial Park, 273 PA-68, Rochester.
The family would like to thank Grane Hospice for their dedication and compassionate care that they provided Tee.
Those wishing to make a memorial contribution in Thelma’s memory are asked to please consider the DAV (Disabled American Veterans) Organization, (412-395-6241).