Robert Joseph Mailloux was 29 when he was last seen in Petaluma, California, on February 20, 1981. He vanished under unclear circumstances and remains classified as a missing person with no significant leads reported since his disappearance.

Mailloux is described as a Caucasian man, 5 feet 11 inches tall, about 155 pounds, with brown hair and blue eyes. Few details are available about what he was wearing or carrying. The Petaluma Police Department says his dental and fingerprint records exist for comparison, but neither has produced a match to determine his whereabouts.

If anyone remembers Robert Mailloux, his movements in Petaluma around February 1981, or has information that could help, please contact the Petaluma Police Department.