Novato

Mark Boero passed away peacefully at home in Bel Marin Keys on May 12, 2025, at the age of 80.

Born in San Francisco and raised in Sleepy Hollow, San Anselmo, Mark was a lifelong Marin County resident. He graduated from Drake High School, the University of Nevada-Reno, and the University of the Pacific School of Dentistry, going on to practice alongside his father and brothers in San Rafael.

He and his wife, Jo, built ahome on ahilltop in Sleepy Hollow, where they raised their daughters and spent over four decades together. They loved to entertain. Their home was always full of laughter, warmth, and the company of those they loved—always welcoming guests with a glass of wine, an unbelievable view, and great stories.

Mark lived with curiosity and enthusiasm. He was passionate about hunting, fishing, skiing, tennis, and horseback riding, and had a lifelong love of games—especially cards, backgammon, and Pedro.

He found deep joy in the outdoors, from riding trails with fellow Sonoma County Trail Blazers to duck hunting with his loyal dog, or carving tracks in fresh powder. But fly fishing became his greatest passion. Mark traveled far and wide to fish—from Montana’s Bighorn River to the rivers of Alaska, the flats of Belize, the lakes of Argentina and the wild waters of New Zealand.

Being a grandfather brought him great pride. He loved watching his grandchildren ski, perform, ride horses, and hunt—especially when their interests mirrored his own. After his Parkinson’s diagnosis, Mark retired from dentistry.

Though the disease narrowed the range of things he could do, it never diminished his independent spirit. With the support of his wife, daughters, and caregivers, he was able to spend his final years at home.

Mark is survived by his wife of 54 years, Jo; his daughters, Sophie Scardaci (Dennis) and Amy Harmon (Cyrus); grandchildren Celeste & Gavin Kurnik, and Olivia & Mark Harmon; his brother Roger (Emagene); his sister-in-law Boo Boero; and many beloved nieces and cousins. He was preceded in death by his parents, Edward and Wanda Boero, and his brother Gary.

A celebration of Mark’s life will be held on Sunday, June 29, at 2:00 p.m. at the Marin Art and Garden Center. Friends and family are invited to gather, remember, and raise a glass in his honor. You may also visit Legacy.com to leave a message or memory.

In lieu of flowers, please honor his memory by spending time outdoors—casting a line, taking a walk, or enjoying a view with loved ones. He would’ve loved that.