Donald Alan Williamson

Passed away on March 24, 2026 in San Francisco. Beloved father of Eric Williamson (Cassandra) of San Luis Obispo and Karra O’Brien (Tommy) of Santa Rosa. Cherished grandfather (Pop) of Thomas (Alyssa), Tyler, William, and Wyatt O’Brien, Vivienne and Claire Williamson. Great-grandfather of Josie O’Brien. Beloved brother of Lori Pope (Frank). Loving son of the late David and Nadine Williamson.

Devoted to his family, Don spent much of his time with his kids and grandkids. He was also an avid outdoorsman who loved to camp, fish, and hunt with friends and family. He also had a passion for riding motorcycles with many of his best friends. Don loved animals, saving many a stray cat, or any other animal in need. Don was very caring person with a big heart, and his love touched so many people. The memories we have of him will always be cherished.

Friends and family are invited to attend the Funeral Service, Friday, April 10, 2026 at 10:00am at the Seventh-Day Adventist Church, 495 San Marin Drive, Novato, CA. A visitation will also be held on Thursday, April 9th from 4:00 – 8:00pm at the Parent Sorensen Mortuary & Crematory, 850 Keokuk Street, Petaluma, CA.