Mary C. Harbach, 78, of Hinesville, GA, formerly of Macungie, died Jan. 28, 2022 in Lehigh Valley Hospital.  Born in Bellefonte, she was the daughter of the late Olive L. (Smith) and Clifford B. Holt, Jr.  She was a 1961 graduate of State College High School, a 1965 graduate of Penn State University, and a 1966 graduate of Drexel University with a master's degree in library science.  She worked as a librarian for York College, psychiatric aide for the Allentown State Hospital, secretary for Lehigh Magnetic Imaging, and owned and operated Walnutport Transportation.  She was a member of Solomon's U.C.C., where she sang with the choir for many years.  She was a member of the Bach choir in Bethlehem for 29 years and Savannah Philanthropic Chorus from 2014 to 2019.

Mary is survived by her daughters, Erin Lynn Harbach of Hinesville, GA, Michelle Louise wife of Shawn Wanamaker of Slatington, Elizabeth Anne wife of Evgenii Churilov of Macungie, and JoAnna Rebecca wife of Jon Constantino of San Francisco, CA; sister, Carolyn J. Holt of Hinesville, GA; 8 grandchildren.

Funeral services will be held on Thurs., Feb. 3, 2022 at 11:00 AM in Schantz Funeral Home, P.C., 250 Main St., Emmaus.  Viewing 10:00 to 11:00 AM in the funeral home.  Interment Fri., Feb. 4, 2022 at 11:00 AM in Centre County Memorial Park, State College.

In lieu of flowers, contributions may be made to Solomon's U.C.C. or to the Clifford B. Holt, Jr. Scholarship Fund, Electrical Engineering, Penn State University.