Solved via IGG NAMUS: UP10754 (SOLVED) • DOE NETWORK: 1199UFAZ • AGENCY CASE: CCSO-1958-1031 • JURISDICTION: Coconino County Sheriff's Office & Cold Case Unit

Joyce Jackson: Little Miss X Solved via Genetic Genealogy

The Oldest Cold Case in Coconino County: How DNA Doe Project and Arizona detectives solved the 63-year mystery of Little Miss X.

Archival Case File Banner: Joyce Rochelle Jackson (
SECTION 1: THE OFFICIAL CASE RECORD (VERIFIED FACTS)
Official Case Date October 31, 1958 (ID'd June 2021)
Discovery / Last Seen Location Grand Canyon Junction, Route 66, Coconino County, AZ
Demographic Profile White Female Adolescent, 15 Years Old (5'2", Light Brown Hair)
Anthropological Age Estimate 15 Years Old (DOB: 1942)
Primary Investigating Agency Coconino County Sheriff's Office & DNA Doe Project
Forensic Identifiers Available Route 66 Pine Needles, Cleveland OH Runaway, 63-Year Cold Case Resolution

On Halloween morning, October 31, 1958, a highway maintenance worker surveying a wooded drainage slope along Route 66 near Grand Canyon Junction in rural Coconino County, Arizona, discovered the skeletal remains of a young girl. The victim had been bound and discarded in the pine needles. Designated as "Little Miss X," she stood on official Arizona coroner dockets as the county's oldest unidentified decedent cold case for sixty-three years.

Discovery, Route 66 Corridor & Forensic Demographics

Pathologists estimated the decedent was an adolescent female between 14 and 17 years old, standing approximately 5 feet 1 inch to 5 feet 3 inches tall. She had been dead for approximately nine to eighteen months before recovery.

At the scene, investigators recovered unique personal items: a 10-karat gold ring inscribed with the initials "P.B.", a red sweater, and remnants of blue denim pedal pushers. In 1962, she was buried in the Flagstaff Citizens Cemetery under a marker reading "Unknown Female Child." For decades, Coconino County Sheriff's detectives chased runaway leads from across the American Southwest, but traditional fingerprint and dental checks never surfaced a match.

Date / Period Jurisdiction / Entity Forensic Event & Milestone
Mid 1957 Cleveland, Ohio Fifteen-year-old Joyce Rochelle Jackson vanishes from her Cleveland residence.
Oct 31, 1958 Grand Canyon Junction, AZ Skeletal remains discovered off Route 66; cataloged as NamUs UP10754.
1962 Flagstaff Citizens Cemetery Buried under "Unknown Female Child" marker; case remains active cold file.
2018 Coconino County SO Remains exhumed; skeletal core submitted to DNA Doe Project for SNP extraction.
Mar 2021 DNA Doe Project Genealogists triangulate cousin lines to Cleveland, OH; Jackson family identified.
June 2021 Coconino County Sheriff Sheriff Jim Driscoll formally announces Little Miss X is 15-year-old Joyce Jackson.
SECTION 2: PROMINENT COMMUNITY THEORIES & ANALYTICAL HYPOTHESES
Investigative Ethics & E-E-A-T Guarantee: This analytical section examines documented community theories, crowdsourced timeline comparisons from verified cold-case forums (Websleuths, Reddit r/UnresolvedMysteries, Doe Network), and geographic distribution models. In strict accordance with our nonprofit charter, no living unindicted private citizens are named or accused. All hypotheses evaluate physical markers, transportation corridors, and anatomical evidence.

The DNA Doe Project Resolution & The Cross-Country Journey

In 2018, Coconino County Sheriff's Cold Case Detective Chuck Jones organized an exhumation of Little Miss X at Citizens Cemetery in Flagstaff. The bone samples were transferred to specialized sequencing labs partnering with the DNA Doe Project. Despite heavy calcium leaching from sixty years of subterranean burial, technicians assembled a viable SNP profile.

Genealogists worked through intricate family trees spanning Ohio, Kentucky, and Indiana. In early 2021, the team contacted surviving family members of Joyce Rochelle Jackson, who had vanished from Cleveland, Ohio, in 1957 at age 15. A reference buccal swab from Joyce's surviving sister provided definitive proof.

Her identification marked the resolution of Coconino County's oldest cold case. Detectives have turned their attention to tracing how a 15-year-old girl traveled from industrial Cleveland, Ohio, to the high desert of northern Arizona along Route 66 in the late 1950s.

SECTION 3: LAW ENFORCEMENT SUBMISSION & OFFICIAL TIP LINE

Have Information Concerning This Investigation?

Even the smallest detail—a recollection of a vehicle, a seasonal acquaintance, or an old photograph—can provide the missing link to solving a multi-decade cold case. All leads submitted through official channels are cross-referenced with state databases and active forensic profiles.

Coconino County Sheriff's Office Cold Case Unit
(928) 226-5012
Call Detective
Coconino County Silent Witness
(928) 774-6111
Call Agency
FBI ViCAP (Violent Criminal Apprehension)
1-800-CALL-FBI
OFFICIAL CASE CODES: NamUs: UP10754 (SOLVED) • Case Docket: CCSO-1958-1031. Reference these identifiers when submitting information.
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