Sharon L. “Sherry” (Heist) Gallagher, 75, of Breinigsville, died April 3, 2026, at Mosser Nursing Home, surrounded by her family. She was the wife of Thomas F. Gallagher, to whom she was married 57 years. Born in Allentown Nov. 19, 1950, She was the daughter of the late William J. Heist, Sr. and Margaret A. (Schmidt) Heist.

She was a secretary at PPL Electric Utilities, Allentown, for over 30 years before retiring. She organized and ran the Kelly Gallagher Memorial Golf Tournament for 21 years, benefiting local children and their families suffering from cancer. She and her husband were the proud Allentown St. Patrick’s Day King and Queen in 2008. She was a member of the Cathedral of St. Catharine of Siena, where she was a lector, eucharistic minister and was on the RCIA committee.

In addition to her husband, she is survived by son Scott Gallagher and his wife, Heather; grandsons Brady Gallagher and his wife, Hannah and Kevin Gallagher and his wife, Maria; brother Michael Heist; sister Kathleen Neiswender; sisters and brothers-in-law Susan Stavros, Mary Shore and her husband, Dr. Stephen Shore, Gerald Gallagher and his wife, Ann, and David Sabo; many nieces, nephews, great-nieces and great nephews.

She was predeceased by her daughter, Kelly Gallagher, and brother William J. Heist, Jr.

A Mass of Christian Burial was held April 11, 2026, in the Cathedral in Allentown. Interment followed at Resurrection Cemetery, Allentown. Online expressions of sympathy may be recorded at www.heintzelmanstephens.com.

Memorial contributions may be made to Alzheimer’s Association, P.O. Box 96011 Washington, DC 20090-6011.