Donald Eugene Meinhardt, 48, was last seen on June 12, 1988, in Myers Flat, California. Known as Little Donnie, he was 5 feet 5 inches and about 145 pounds, with brown hair and blue eyes. The Humboldt County Sheriff’s Office has classified him as an endangered missing person.

Investigators suspect his disappearance may be linked to a motorcycle gang–related incident in Southern Humboldt County and consider the case to possibly involve foul play, but no evidence or remains have been found to confirm his fate. The case remains unsolved and has been kept open by NamUs and local agencies, with only scarce public details and no substantial leads reported.

If anyone knew Donald, his last whereabouts in Myers Flat, or has information about motorcycle gang activity in Southern Humboldt County in June 1988, please share what is known with the Humboldt County Sheriff’s Office.