William Marshall Sellman, “Bill,” beloved father, grandfather, husband, brother and friend, passed away peacefully on January 8, 2026, at the age of 75.

Bill was born on March 25, 1950, in Las Vegas, New Mexico, to John and Pauline Sellman. The family moved to Onyx (Lake Isabella area), California in 1960 where he grew up and married his high school sweetheart in 1971. Together, they started a family and moved to Northern California, where they raised their three children.

Bill spent most of his life in Mad River, Willow Creek and Fortuna, where he built a home filled with love, laughter, and steady guidance. After settling in Fortuna, he met his forever soul mate in 2011, who remained by his side until his passing. He was a proud and devoted father who never missed an opportunity to support his children in all they pursued.

Bill worked for over 35 years for the Contel/Verizon phone company and was known for his strong work ethic, integrity, and willingness to help others. Outside of work, he enjoyed fishing, hunting, traveling the U.S. in his travel trailer, and spending time with his family. He especially loved fishing and crabbing in the ocean with his friends and loved ones. Bill was always quick to strike up a conversation and made many friends wherever he went.

He is survived by his children, Shan (Fred) Grundman, Robert Sellman (Adriano), and Ryan (Heather) Sellman; his step daughter Angela Martin; his grandchildren, Saige and Kyle Grundman, Mason and Cole Sellman; his sister, Sharon (Gary) Alexander; his brother, John Sellman; his wife, Kimberly Songer; and many extended family members and friends who will miss him deeply. He was preceded in death by his parents and his stepson, Tony Brown.

Bill will be remembered for his kindness, quiet strength, sense of humor, and unwavering love for his family and friends. His legacy lives on through the lives he touched and the values he passed down. Bill loved his AA family of 38 years and found lasting meaning through service to others. He remained devoted to giving back what was so freely given to him.

We would like to extend our sincere appreciation and gratitude to Kimberly for caring for our dad in her home, to Kimberly’s children for their help and support, and to Bill’s friends who lent a hand and checked in on him.

A celebration of Bill’s life will be held on January 25 at 12 p.m. in the Fortuna Seventh-day Adventist Dining Room (2301 Rohnerville Road, Fortuna).