Donald Irvin Baum, 76, of Allentown, died Oct. 26, 2025, at Lehigh Valley Hospital – Cedar Crest, Salisbury Township. He was the beloved husband of Carol A. (Kramer) Baum, with whom he shared 52 years of marriage.

Born in Allentown, he was the son of the late Irvin M. and Alice M. (Fenstermaker) Baum.

He faithfully and honorably served in the United States Air Force during the Vietnam War era. Following his service, he worked as a technician for Muller Martini Group (formerly GMA) in Allentown for about 15 years, retiring in 2005. Earlier in his career, he was employed at Lehigh Valley Dairy.

A devoted member of St. Timothy Evangelical Lutheran Church in Allentown, he valued his faith, family and community. He and his wife enjoyed traveling together and visiting family across the country. He also found great joy in photography, woodworking and playing golf. He was active with the Boy Scouts and proudly coached his daughter’s softball team.

A lifelong Philadelphia sports fan, he cheered enthusiastically for all the hometown teams as well as Penn State football.

As his multiple sclerosis progressed, he continued to find joy and purpose through his creativity — crafting latch hook art, making Christmas decorations and playing checkers. Above all, he treasured time spent with his grandsons and took every opportunity to interact with them as much as he was able.

In addition to his wife, he is survived by a son, Brian C. and his wife, Jackie, of Macungie; daughter, Teri L. Stoffey and her husband, Scott, of Breinigsville; sister, Carol I. Jones and her husband, Rick, of Allentown; brother, Glenn D., of Florida; sister-in-law, Tina; grandsons, Aaron S., Brayden T. Stoffey, Evan J. Stoffey.

He was predeceased by his brother, James A.

A private graveside service with military honors will be held at Grandview Cemetery, Allentown. No public calling hours. The Heintzelman-Stephens Funeral Home, P.C., is in charge of arrangements. Online expressions of sympathy may be shared at www.heintzelmancares.com.

Memorial contributions may be made to the National Multiple Sclerosis Society, 30 S. 17th St., Suite 800, Philadelphia, 19103.