Overview

• Name: Christine May Gregg
• Date of Birth: July 29, 1957
• Age When Missing: 18 years old
• Date Last Seen: June 16, 1976
• Last Known Location: Sacramento, California
• Circumstances: Christine disappeared after giving birth to a daughter who was placed for adoption.
• Last Confirmed Family Contact: Her sister last saw her in December 1975.
• Investigating Agency: Sacramento Police Department
• Case Status: Unsolved missing person investigation as of October 2026.

Key Mystery: Christine’s family has been unable to identify the Sacramento hospital where she gave birth. Investigators believe identifying the hospital could help establish what happened immediately before her disappearance.

Detailed Case Breakdown

Christine May Gregg Missing Person Case: 18-Year-Old Mother Disappeared in Sacramento, California, in 1976

Nearly 50 years after Christine May Gregg disappeared following the birth of her daughter, her family continues searching for answers. A DNA discovery, newly connected relatives, and an age-progressed photograph have brought renewed attention to this decades-old California missing person case.

Brief Case Summary

• Name: Christine May Gregg
• Date of Birth: July 29, 1957
• Age When Missing: 18 years old
• Date Last Seen: June 16, 1976
• Last Known Location: Sacramento, California
• Circumstances: Christine disappeared after giving birth to a daughter who was placed for adoption.
• Last Confirmed Family Contact: Her sister last saw her in December 1975.
• Investigating Agency: Sacramento Police Department
• Case Status: Unsolved missing person investigation as of October 2026.

Key Mystery: Christine’s family has been unable to identify the Sacramento hospital where she gave birth. Investigators believe identifying the hospital could help establish what happened immediately before her disappearance.

The Disappearance of Christine May Gregg

On June 16, 1976, 18-year-old Christine May Gregg gave birth to a baby girl at a hospital in Sacramento, California. The child was placed for adoption, and Christine subsequently vanished.

Her family never heard from her again.

According to the National Center for Missing & Exploited Children (NCMEC), Christine’s disappearance has remained a mystery for five decades. Although authorities know she gave birth in Sacramento, the exact hospital has not been identified.

The circumstances surrounding her departure from the hospital, her intended destination, and whether she encountered anyone afterward remain unknown.

Christine has not been publicly confirmed alive or deceased, and her case remains classified as a missing person investigation. us.missingkids.org

Christine Gregg’s Life Before Her Disappearance

Christine was born on July 29, 1957, and grew up in the San Jose area of California.

Her younger sister, Colleen Ferris, recalled that the sisters shared a close relationship despite experiencing a difficult childhood.

According to Colleen, Christine occasionally left home for extended periods during her teenage years. However, she had always eventually returned.

The last time Colleen personally saw Christine was in December 1975.

Approximately six months later, the family received a telephone call from a Sacramento hospital informing them that Christine had given birth to a daughter who would be placed for adoption.

That telephone call provided the family with one of the last confirmed details about Christine’s whereabouts.

After June 16, 1976, Christine never reestablished contact with her family. us.missingkids.org

The Mystery Surrounding the Sacramento Hospital

One of the most significant unanswered questions in Christine Gregg’s disappearance concerns the hospital where she delivered her daughter.

Because the adoption was closed, the family has struggled to obtain information about the birth.

Colleen Ferris has contacted multiple hospitals throughout the Sacramento area, attempting to locate records that could establish where Christine was treated.

As of June 2026, those efforts had not produced the hospital’s identity.

Identifying the facility could potentially help investigators reconstruct Christine’s final known movements, establish when she left the hospital, and determine whether additional records or witnesses might exist.

However, there has been no publicly confirmed discovery of hospital records resolving this mystery. ncmec.org

A DNA Discovery Reconnects Christine’s Family

In 2020, Colleen Ferris submitted her DNA to the genealogy service 23andMe, hoping to uncover information about her missing sister.

Although the test did not establish Christine’s whereabouts, it led to an unexpected family connection.

Colleen matched with April Alley, Christine’s biological granddaughter.

The discovery confirmed that the daughter Christine delivered in 1976 had grown up and started a family of her own.

For Colleen, the connection was deeply meaningful.

After decades of uncertainty, she was able to establish relationships with family members she had never known.

April also expressed her determination to continue searching for answers about her grandmother.

The discovery renewed the family’s hope, but it did not establish what happened to Christine after her daughter’s birth. us.missingkids.org

Latest Investigation Updates: 2024–2026

New Age-Progressed Photograph Released

In 2024, a forensic artist working with NCMEC created an age-progressed image depicting what Christine might look like at approximately 66 years old.

The image was designed to assist with public recognition and generate potential leads.

Christine’s original photographs show a young woman with brown hair and brown eyes.

According to California Department of Justice records, she was approximately 5 feet 5 inches tall, weighed 165 pounds, and had a scar on one thigh.

The Charley Project added the age-progressed image to its case profile in an update dated May 29, 2025. The Charley Project

June 2026: Family Shares New Details

On June 18, 2026, NCMEC published an article documenting Colleen Ferris’s decades-long search for Christine.

The report revealed additional details about the family’s childhood, Christine’s disappearance, and the DNA connection that reunited previously unknown relatives.

It also highlighted the family’s continued efforts to identify the Sacramento hospital.

The publication marked a significant renewed public-awareness effort surrounding the case.

As of October 15, 2026, Christine’s disappearance remains unresolved in the available public records.

No publicly verified arrest, identification of remains, or confirmed explanation for her disappearance was located.

The DNA discovery represents an important family development rather than confirmation that investigators have determined Christine’s fate. us.missingkids.org

Unanswered Questions in Christine Gregg’s Disappearance

Several important questions remain unanswered.

The exact Sacramento hospital where Christine gave birth has never been publicly established.

It is also unclear when she left the hospital, whether she departed alone, or where she intended to go afterward.

Authorities have not publicly established whether Christine voluntarily disappeared, experienced an accident, or became the victim of a crime.

Online missing-person discussions have explored possible connections between Christine and unidentified remains. However, speculative comparisons do not establish an identification or confirm that a homicide occurred.

Until additional evidence emerges, the circumstances surrounding her disappearance remain unknown.

Christine Gregg’s Family Continues Searching

For Christine’s sister, Colleen Ferris, the search has continued for decades.

The discovery of Christine’s granddaughter brought multiple generations of the family together and reinforced their determination to find answers.

NCMEC continues displaying Christine’s missing-person poster and age-progressed photograph.

Her family hopes someone may remember encountering Christine in Sacramento during June 1976 or have information about the hospital where she delivered her daughter.

Even seemingly minor details could help investigators reconstruct the events surrounding her disappearance.

Anyone with information is encouraged to contact the Sacramento Police Department or NCMEC.