Mark Lawrence Bosworth

Missing Since: September 16, 2011
Missing From: Riddle, Oregon

Mark Lawrence Bosworth
Mark Lawrence Bosworth
Mark Lawrence Bosworth
Mark Lawrence Bosworth
Mark Lawrence Bosworth
Mark Lawrence Bosworth

  • Classification: Endangered Missing
  • Date of Birth: April 19, 1957
  • Age Missing: 54
  • Hair Color: Gray
  • Eye Color: Blue
  • Height: 6'0"
  • Weight: 180 lbs.
  • Gender: Male
  • Race: Caucasian
Identifying Characteristics:

He has a gray beard and the hair on his head is sparse.


A yellow Cycle Oregon baseball hat, a gray Cycle Oregon hoodie sweatshirt, black athletic pants, a Petzl brand headlamp, a blue Cycle Oregon wristband, and brown bike shoes. He was possibly wearing black Converse prescription glasses and carrying a black over-the-shoulder bag.


Mark is currently battling non-Hodgins lymphoma. This condition causes pressure on the frontal lobe of his brain, which can cause confusion and disorientation.


Bosworth was last seen at the Cycle Oregon event in Riddle, Oregon on September 16, 2011, around 11:00 p.m. He had recently been complaining of headaches and had been exhibiting signs of disorientation and confusion, which is believed to be due to his medical condition. He may think it's 10 to 20 years ago and may try to go to Chicago, Illinois; Santa Cruz, California; North Carolina; Missouri or Florida.

Investigating Agencies:
  • Douglas County Sheriff's Office: 1-541-440-4450
Case Numbers:
  • Police Case #: 11-3534
Source Links:

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