VOORHEESVILLE — David K. Zwack, a longtime resident of Voorheesville, who ran a stone business there, is described by his family as a gentle giant and a humanitarian.

He died peacefully on Friday, July 4, 2025, in St. Peter’s Hospital in Albany, surrounded by his loving family. He was 69.

He was born on July 30, 1955, the son of John Zwack Jr. and Geraldine Dwyer Zwack,

“David’s early years were spent in Albany where he was educated by Albany City Schools, and Thompson’s Lake where he learned his love of the land,” his family wrote in a tribute. “An avid hunter, David could be found spending time target shooting with his best friends, always carrying arms wherever he traveled.

“The owner of Zwack’s Decorative Stone, David was a tough guy, often picking the heavy stones by hand.

“This world has lost a gentle giant, a patriot, a pioneer, a dad, a brother, a papa, a teacher, a friend to all, and a humanitarian on all levels. There will never ever be another person in this entire world that could ever exhibit all his qualities. He did it all his way, off the grid, but with a strong silent presence.”

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David K. Zwack is survived by his longtime companion, Darlene Guido, with whom he shared 30 years. He is also survived by his son, Darrick (Tess) Zwack, and daughter, Beth (Mike) Gagliardi, as well his beloved grandchildren, Memphis, Corbin, Tommi, and David.

He is also survived by his siblings: Jeanne (Jack) DeCloe, Stephen (Dianna) Zwack, and Cindy (John Kern) Caruso, and by a host of cherished nieces, nephews, and lifelong close friends.

His father, John Zwack Jr., and mother, Geraldine Dwyer Zwack, died before him, as did his brother, John Zwack III.

Family and friends are invited and may visit with his family in the Fredendall Funeral Home at 199 Main Street in Altamont on Friday, July 11, from 4 to 7pm. A funeral service will be held in the funeral home at 7 p.m. immediately following the calling hours.

Memorial contributions may be made to Community Hospice, 445 New Karner Road, Albany 12205.