Missing Since: 1967-11-04 Location: Quincy, California
Mark was last seen in Quincy, California on November 4, 1967. He left his residence in Meadow Valley, California home on foot shortly after 2:00 p.m., after telling his parents he was going to hitchhike to Quincy to see a movie. He never returned home and has never been heard from again. He was carrying only $1 when he left home, and his family didn’t know of any problems which might have caused him to run away. At the time of Mark’s disappearance, he was an eighth-grader at Quincy Junior-Senior High School. His case remains unsolved. Investigating Agency Plumas County Sheriff’s Office 530-283-6300 Source Information The National Center For Missing and Exploited Children California Attorney General’s Office The Plumas County News The Feather River Bulletin Updated 5 times since October 12, 2004. Last updated October 24, 2025; clothing/jewelry description and details of disappearance updated.