Mark Addison

Above: Addison, circa 1982


Vital Statistics at Time of Disappearance

  • Missing Since: September 4, 1982 from San Luis Obispo, California
  • Classification: Missing
  • Date Of Birth: August 29, 1960
  • Age: 22 years old
  • Height and Weight: 5'9, 165 pounds
  • Distinguishing Characteristics: Caucasian male. Brown hair, brown eyes. The tip of Addison's middle finger on his left hand is missing.
  • Clothing/Jewelry Description: A blue/gray plaid shirt, Levi's jeans and a green and white baseball jersey.
  • Bar

    Details of Disappearance

    Addison was last seen in San Luis Obispo, California on September 4, 1982. Prior to his disappearance he had bought camping gear, and made comments about wanting to go into the mountains and live off the land. His vehicle was found abandoned in Bakersfield, California a few days after he was reported missing. Addison has never been heard from again. Few details are available in his case.


    Investigating Agency
    If you have any information concerning this case, please contact:
    San Luis Obispo Police Department


    Source Information
    California Attorney General's Office


    Updated 1 time since October 12, 2004.

    Last updated November 7, 2015; details of disappearance updated.

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