Martha Lavonne Evans

Evans, circa 1978 (twelve years prior to her disappearance); Evans, circa 1990

  • Missing Since 02/10/1990
  • Missing From Knappa, Oregon
  • Classification Endangered Missing
  • Sex Female
  • Race White
  • Age 33 years old
  • Height and Weight 5'3 - 5'4, 110 pounds
  • Clothing/Jewelry Description A strapless, backless maroon and black silk and lace dress, a short black leather jacket, black nylon stockings, black heels, and twisted gold hoop earrings.
  • Distinguishing Characteristics Caucasian female. Dark brown hair, brown eyes. Evans has an appendectomy scar and a hysterectomy scar on her abdomen. Her ears are pierced one time each in the lobe. She has a tattoo on the back of her left shoulder of seven roses and a banner saying "Daddy", a tattoo on the outside of her right ankle of a dragon with a banner saying "Penny", and a tattoo of a tiger on her abdomen. The tiger tattoo covers her appendectomy scar and its claws touch the hysterectomy scar. Evans's maiden name is Benthin.

Details of Disappearance

Evans was last seen leaving the High Climber Room lounge in Knappa, Oregon at 9:30 p.m. on February 10, 1990. She had served as a bridesmaid in a friend's wedding that day, and after the ceremony the wedding party went to the lounge.

Evans locked her purse inside the trunk of the bride's car and spent a short time inside the lounge before she told her friends she had to make a quick trip to Warrenton, Oregon and would be back in an hour. She left without taking her purse and has never been heard from again.

Evans's vehicle, a borrowed brown 1984 Ford Ranger pickup truck with numerous dents, a 7-Up sticker in the window, and the Oregon license plate number PNB116, disappeared with her and has never been found. Her case remains unsolved.

Investigating Agency

  • Oregon State Police 503-325-5515

Updated 2 times since October 12, 2004. Last updated May 12, 2017; distinguishing characteristics, clothing/jewelry description and details of disappearance updated.