The person at the center of this case
Mary Ann Humfreville
Missing Person · Open
5 years waiting · since 2020
Missing Person: Mary Ann Humfreville
Justice for Mary Ann Humfreville — the trail went cold in 2020, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1What vehicle was Mary Ann driving when she disappeared, and has it been located or identified?
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timeline
Lead #2Why did her son wait four days (December 15-19) before reporting her missing?
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location
Lead #3What circumstances would cause a 73-year-old to leave her residence, pets, and wallet behind in a foreign country?
Mary Ann Humfreville, a 73-year-old woman, was last contacted on December 15, 2020, at her residence in Baja, Mexico. Her vehicle was missing while her wallet, pets, and other belongings remained at her home, suggesting an unexpected departure. The Ventura County Sheriff's Office continues to investigate the circumstances surrounding her disappearance as a suspicious at-risk missing person case.
Case
#4545
Ventura County Sheriff's Office - Major Crimes Investigations
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
🔍
evidence
Lead #4Have authorities in Mexico conducted a search of the area surrounding her residence?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP139696. Missing person: Mary Ann Humfreville.
Last known contact: 2020-12-15 in Camarillo, Ventura, CA. Circumstances: Son from Camarillo spoke with Mary at her residence in Baja, Mexico.
Mary's wallet, pets, and belongings were at her residence, but her vehicle was missing. Suspicious At-Risk MP.
Demographics: 73 years, Female, White / Caucasian. Physical description: 5 ft 4 in, 275 lbs, hair: Gray or Partially Gray, eyes: Green.
Clothing and accessories: Clothing: Last seen wearing an unknown colored short sleeve shirt and unknown colored shorts.. Investigating agency: Ventura County Sheriff's Office-Major Crimes Investigations | 20-174499 | 2020-12-19.
Timeline of Events
👁️
2020-12-15
Last Known Contact
Son from Camarillo spoke with Mary at her residence in Baja, Mexico. Vehicle was missing but wallet, pets, and belongings remained at residence.
🕵️
2020-12-19
Case Reported
Ventura County Sheriff's Office Major Crimes Investigations opened case MP139696.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:December 15, 2020
Last Updated:September 27, 2026
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Phone: 8053838704
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Case Information
Incident:December 15, 2020
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 8053838704
You can remain anonymous