The person at the center of this case
Franklin David Harder
Missing Person · Open
48 years waiting · since 1978
Missing Person: Franklin David Harder
Justice for Franklin David Harder — the trail went cold in 1978, but the truth hasn't.
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Key leads to think about
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person
Lead #1Why did Franklin Harder disappear without a trace in 1978? What circumstances led to his vanishing?
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witness
Lead #2Were there any witnesses to his last movements or activities on April 23, 1978?
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clue
Lead #3What was Harder doing in the Grangeville area at the time of his disappearance?
Franklin David Harder, a 25-year-old white male, disappeared on April 23, 1978, in Grangeville, Idaho. He was last seen in Idaho County and has not been located in nearly five decades. The case remains open with the Idaho County Sheriff's Office, and anyone with information about his whereabouts is urged to come forward.
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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.
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evidence
Lead #4Are there any records, communications, or physical evidence from the initial 1978 investigation that could provide leads?
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 MP2067. Missing person: Franklin David Harder.
Last known contact: 1978-04-23 in Grangeville, Idaho, ID. Circumstances: Harder was last seen in Idaho County, Idaho on April 23, 1978.
Demographics: 25 years, Male, White / Caucasian. Physical description: 6 ft 2 in, 185 lbs, hair: Brown, eyes: Brown.
Investigating agency: Idaho County Sheriff's Office | 8503035 | 1978-07-14.
Timeline of Events
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1978-04-23
Last Known Contact
Franklin David Harder was last seen in Idaho County, Idaho on April 23, 1978.
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1978-07-14
Investigation Opened
Idaho County Sheriff's Office opened investigation into the disappearance.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:April 23, 1978
Last Updated:September 28, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 2089831100
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Case Information
Incident:April 23, 1978
Last Updated:September 28, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 2089831100
You can remain anonymous