206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case?
Katherine Lyon, a 10-year-old girl from Wheaton, Maryland, was last seen on March 25, 1975, along with her 12-year-old sister, Sheila Lyon. The two sisters had gone to the Wheaton Plaza Shopping Center, a popular local destination, to see the Easter exhibits and have lunch. The girls were last seen around 2 p.m. walking home from the shopping center, but they never arrived.
Their disappearance sparked one of the most extensive missing person investigations in Maryland’s history, with ...Read More
Last Seen: Mar 25, 1975
Their disappearance sparked one of the most extensive missing person investigations in Maryland’s history, with ...Read More
Last Seen: Mar 25, 1975
Links to Additional Sources (12)
See any mistakes?Victim Details
Apr 10, 2009
Aug 01, 2024
Katherine
Lyon
60
10
56 inches
85 lbs
White / Caucasian
Female
Mar 25, 1975
Wheaton
Maryland
Montgomery County
No
235
3244
Montgomery County Police Department
Gaithersburg
Maryland
Montgomery County
20878
Public Safety Headquarters, Maryland
3012798000
County
Law Enforcement
W514579
Montgomery County Police Department
6574
Blond/Strawberry
Blue
Blue
11/19/2025
Area Last Seen:
Forum Posts (3)
I've always found it interesting how mall culture played such a central role in the lives of people ... ...Read More
09/07/2024
09/07/2024
I came across something interesting while reading about the Lyon sisters' case that I'd love to disc... ...Read More
03/26/2023
03/26/2023
I was reading through some old articles and noticed something interesting about the timeline when th... ...Read More
03/06/2023
03/06/2023
