Mary Celine Miller-Nestler
Mary Celine Miller-Nestler, 95, Beloved wife of Robert T. Nestler; daughter of the late Theodore and Louise Boyer; sister of Raymond (JoAnn), Robert, deceased, and Clare Mulkern (Robert); step-mother and friend to Paul Nestler, Maureen Messersmith (Ernie), Timothy Nestler, Jean Simmons (Robert). Also survived by many nieces and nephews. Born in Sharpsburg in 1931, Mary Celine graduated from St. Martin’s High School in 1949 and entered the Sisters of Divine Providence in January, 1950. She earned a B.Ed. and M.Ed. in L.S., from Duquesne University and a Masters in Library Science from the University of Pittsburgh.
Mary Celine taught junior high at St. Joseph School in Braddock (1952-1956) and St. Anne School in Castle Shannon (1956-1959). Pragmatic and visionary, she spent the rest of her career as an academic library director at two Pittsburgh area university libraries. From 1959 to 1966, she developed The Sister’s Library at Divine Providence that served as the foundation for the developing LaRoche University Library, where she served as its first director. In 1966, she joined Robert Morris University as the Director of Libraries until her retirement in 1992. It was there that she worked intensively with the University Administration and architects to design the Patrick Henry Library and Learning Center. In the years before her retirement in 1992, she directed a dedicated staff in the installation of an automated integrated library system. She was active and served on various committees in the American Library Association, the Pennsylvania Library Association, and the Pittsburgh Regional Library Center (PRLC). After her retirement from Robert Morris, she remained at the University (part-time) for eleven years re-organizing and developing a classification scheme for the University Archives. Among her many interests, Mary Celine was a Master Certified graphoanalyst, giving numerous lectures over the years. In 2004, she became an Ordained Minister of Spirit-Directed Healing with Celebrating Life Ministries and remains an active member of the organization. Known as the local “Angel Lady” she gave almost a hundred Angel lectures and distributed weekly messages to interested followers. A lifelong learner, her many interests included health and wellness, spirituality, and a fondness for recipes. Mary Celine was a member of St. Margaret Mary’s Church in Moon Township where she worshiped almost daily. She lived her life by the creed, “In him we live, and move, and have our being” Acts 17:28.
Friends will be received on Sunday July 20, 2026 from 3pm until 7pm in Huntsman Funeral Home and Cremation Services of Moon Twp. A Mass of Christian Burial will take place on Monday, July 21 2026 at 1pm in St. Margaret Mary Church in Moon Twp.
Private interment will take place in St. Martin Cemetery, Pittsburgh.
In lieu of flowers, donations can be made to The Sister of Divine Providence, 9000 Babcock Blvd., Alison Park, PA 15101 or Celebrating Life Ministries, c/o Reverend Paul Funfsinn, 2555 E. 269th Road, Peru, Illinois, 61354.