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298 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP103987) and 5 other sources
In early 1989, a young woman named Katherine Elisabeth Berry, aged 20, disappeared from Muskogee, Oklahoma. A Caucasian female with brown hair, she stood between 5 feet 3 inches and 5 feet 5 inches tall and weighed approximately 115 to 125 pounds. The last point of contact with Katherine was sometime at the beginning of that year, but the specific date and what she was wearing remain unknown, shrouding the beginning of her story in uncertainty. The circumstances surrounding how she vanished are largely a mystery, leaving her family and investigators with few clues to follow.

For many years, Katherine's disappearance was not officially documented in a police report. The case remained in the shadows until decades later when her younger sister, Natalie, took action. Natalie was just an infant when Katherine went missing and only learned of her sister's disappearance as a teenager, a revelation that brought significant heartbreak. After discovering in late 2022 that no official report had ever been filed, Natalie went to the Muskogee Police Department on March 25, 2023, and formally reported her sister as a missing person. This step officially opened an investigation into a case that had been cold for over thirty years.

The investigation into what happened to Katherine Berry is hampered by the passage of time and a scarcity of information. Natalie's efforts to piece together her sister's last known movements have involved navigating family memories, rumors, and scattered facts. There is even some discrepancy regarding the timeline, with the official file noting the last contact in 1989, while family memory suggests Katherine may have vanished earlier, around February of 1987, when she was an 18-year-old high school senior. In a determined effort to find answers, Katherine's mother and half-sister have submitted their DNA to be compared against national databases of unidentified remains, though no match has been found to date. The overview of Katherine Berry's case is one of profound and lingering questions; she is a young woman who vanished with barely a trace, whose absence was not officially noted for decades, leaving her loved ones to lead a search for answers fueled by hope and unresolved grief.

Last Seen: Jan 1, 1989

Possible Unidentified Matches (2)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

75%Possible
Jane Doe — Prue, Oklahoma
UP9925 • Found Aug 4, 2011
View case
Sex ✓Female
Age 100%Est. 35–45 vs 19 when missing
Race 100%White
Location 87%58 mi away, same state
TimingFound 23 years after last seen
Height 100%5'2" vs 5'3"–5'5"
75%Possible
Jane Doe — Moore, Oklahoma
UP156660 • Found Feb 28, 2026
View case
Sex ✓Female
Age 100%Est. 16–28 vs 19 when missing
Race 100%White
Location 71%119 mi away, same state
TimingFound 37 years after last seen
Height 100%5'2" vs 5'3"–5'5"
Weight 100%133 lb vs 115–125 lb
Hair 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.