Katherine Mary Lyon
North American Missing Persons Network
Katherine Mary Lyon

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Above Images: Right: Age-progressed to age 45

Vital Statistics at Time of Disappearance

  • Missing Since: March 25, 1975 from Wheaton, Montgomery County, Maryland
  • Classification: Endangered Missing
  • Date Of Birth: March 29, 1964
  • Age: 10
  • Height: 4'8"
  • Weight: 85 lbs.
  • Hair Color: Blond
  • Eye Color: Blue
  • Race: White
  • Gender: Female
  • Distinguishing Characteristics: Katherine has a birthmark on the inside
    of her upper thigh.
  • Clothing: Underpants - "Carter" brand or "Montgomery Ward," flowered,
    size 8 or 10. Possibly sleevless undershirt - girl type, possibly size 12, brand unknown.
    Jeans - "Wrangler" brand, flare bottom, size 12. Jacket - bright red, flat knit on outside,
    inside fluffy (like sweatshirt) no collar, zipper up front. Knee socks - dark brown and
    beige "Argyles", nylon. Shoes - brushed suede "Wallaby" type, brand name inside "Jumping Jacks",
    dirty beige color shoe and shoe strings.
  • Jewelry: Baby beads "KATE" in black letters on white beads, remainder of beads
    were orange.
  • AKA: Kate
  • Case Number: W514579
  • NCIC Number: M-605329953

  • Details of Disappearance
    Katherine and her older sister, Sheila, left their Kensington home by themselves to walk to Wheaton Plaza Shopping Center. Witnesses saw Sheila and Katherine talking to a middle-aged man in a brown suit and carrying a briefcase outside the Orange Bowl pizza parlor at about 1 p.m. The man had a microphone and tape recorder, and the two girls were seen speaking into the microphone. The man was never located.

    The sisters got a bite of pizza, eating together inside the restaurant, and were spotted walking toward their house between 2:30 and 3 p.m. That was the last confirmed sighting of the Lyon sisters.

    An extensive search was conducted after the disappearance of the girls, whose father was a well-known radio host. About two months after the sisters went missing, Maryland's then-governor called the National Guard to search for them in a Montgomery County forest.

    Investigating Agency
    If you have any information concerning this case, please contact:
    Montgomery County Police Department

    Source Information
    National Center For Missing and Exploited Children
    The Washington Examiner