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Mary Margaret Cook

The person at the center of this case

Mary Margaret Cook

Case
#1878
SourceNamus MissingUpdated Jun 2, 2026
Polk County Sheriff's Office
Missing Person · Open
55 years waiting · since 1970

Missing Person: Mary Margaret Cook

Justice for Mary Margaret Cook — the trail went cold in 1970, but the truth hasn't.

Start here

Key leads to think about

🔍
evidence
Lead #1

Her cat-eye glasses were found in her purse at home despite her inability to see without them—why would she leave without them?

🔍
evidence
Lead #2

Her wedding rings were left at home on the day she disappeared—was this significant or routine?

💡
clue
Lead #3

The green dress she was making—was it completed, and what was its condition when authorities searched?

Mary Margaret Cook, a 25-year-old woman, disappeared on November 14, 1970, in Highland City, Florida, after telling her mother she was making a new green dress. She was a small woman standing 4'10" who depended on her cat-eye glasses to see and would not have left home without them, yet they were found in her purse at home. Despite decades of investigation by the Polk County Sheriff's Office, her fate remains unknown and any information about her whereabouts or what happened that day could finally bring answers to her family.

Case
#1878
SourceNamus MissingUpdated Jun 2, 2026
Polk County Sheriff's Office

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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.

👁️
witness
Lead #4

Who was the last person to actually see Mary Margaret Cook on November 14, 1970?

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 MP1670. Missing person: Mary Margaret Cook.

Last known contact: 1970-11-14 in Highland City, Polk, FL. Circumstances: Mrs.

Cook was last seen in Highland City, FL on 11/14/1970. Demographics: 25 years, Female, White / Caucasian.

Physical description: 4 ft 10 in, 145 lbs, hair: Brown, eyes: Hazel. Clothing and accessories: Accessories: Unknown; Clothing: She had told her mother she was making a new dress of green material.; Eyewear: Her glasses are believed to have been in her purse.

She could not see without them. They were cat's eye style frames.

Also referred to as 'horn-rimmed.'; Footwear: Unknown; Jewelry: Her wedding rings were at home.. Investigating agency: Polk County Sheriff's Office | 2008-152883.

Timeline of Events

👁️
1970-11-14

Last Seen

Mary Margaret Cook was last seen in Highland City, FL on November 14, 1970. She had told her mother she was making a new dress of green material.

Key Locations
Interactive map showing important locations related to this case

Case Information

Incident:November 14, 1970
Last Updated:September 26, 2026

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Any information, no matter how small, could be crucial to solving this case.

Phone: 8632986834
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Case Information

Incident:November 14, 1970
Last Updated:September 26, 2026

Have Information?

Any information, no matter how small, could be crucial to solving this case.

Phone: 8632986834
You can remain anonymous