Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP23705) and 2 other sources
Harvey Long, a 72-year-old man from Menlo Park, California, was last seen on December 31, 1983. At the time of his disappearance, Harvey was non-ambulatory due to a broken hip, making it extremely unlikely that he could have simply walked away from his home. His case has puzzled investigators, as there were no signs indicating where he might have gone, and no further sightings have been reported.

The unusual circumstances surrounding his disappearance, particularly given his inability to walk unaided, have led to speculation, but no definitive conclusions have been drawn. Despite extensive efforts to locate him, Harvey's case remains unsolved. Authorities continue to seek information from the public that could help shed light on what happened to him that day in 1983.

If anyone has information, they are encouraged to contact the local authorities to assist in solving this long-standing missing person case.

Last Seen: Dec 31, 1983

Links to Additional Sources (2)

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Possible Unidentified Matches (10)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

83%Moderate
John Doe — San Francisco, California
UP5913 • Found Feb 13, 1986
View case
Sex ✓Male
Age 89%Est. 60–70 vs 72 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 2 years after last seen
Height 100%5'9" vs 5'9"–5'11"
Weight 100%175 lb vs 150–170 lb
Hair 100%Gray vs Gray
83%Moderate
John Doe — San Francisco, California
UP5899 • Found Dec 24, 1983
View case
Sex ✓Male
Age 85%Est. 55–75 vs 72
Race 100%White
Location 96%26 mi away, same state
TimingFound same day as last seen
Height 100%5'10" vs 5'9"–5'11"
Weight 100%145 lb vs 150–170 lb
Hair 100%Gray vs Gray
83%Moderate
John Doe — San Francisco, California
UP5898 • Found Dec 18, 1983
View case
Sex ✓Male
Age 85%Est. 50–75 vs 72
Race 100%White
Location 96%26 mi away, same state
TimingFound same day as last seen
Height 100%5'10" vs 5'9"–5'11"
Weight 100%165 lb vs 150–170 lb
Hair 100%Gray vs Gray
81%Moderate
John Doe — San Jose, California
UP126945 • Found Nov 23, 1992
View case
Sex ✓Male
Age 85%Est. 50–70 vs 72 when missing
Race 100%White
Location 98%18 mi away, same state
TimingFound 9 years after last seen
Height 100%5'8" vs 5'9"–5'11"
Weight 100%175 lb vs 150–170 lb
Hair 100%Gray vs Gray
80%Moderate
John Doe — San Francisco, California
UP5945 • Found Apr 29, 1996
View case
Sex ✓Male
Age 85%Est. 55–75 vs 72 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 12 years after last seen
Height 100%5'11" vs 5'9"–5'11"
Weight 100%180 lb vs 150–170 lb
Hair 100%Gray vs Gray
80%Moderate
John Doe — San Francisco, California
UP5944 • Found Mar 30, 1996
View case
Sex ✓Male
Age 85%Est. 60–80 vs 72 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 12 years after last seen
Height 100%5'11" vs 5'9"–5'11"
Weight 100%155 lb vs 150–170 lb
Hair 100%Gray vs Gray
80%Moderate
John Doe — California
UP5909 • Found Oct 19, 1985
View case
Sex ✓Male
Age 85%Est. 55–80 vs 72 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 22 months after last seen
Height 100%5'11" vs 5'9"–5'11"
Weight 70%110 lb vs 150–170 lb
80%Moderate
John Doe — Sacramento, California
UP12971 • Found Dec 20, 1983
View case
Sex ✓Male
Age 85%Est. 50–70 vs 72
Race 100%White
Location 79%85 mi away, same state
TimingFound same day as last seen
Height 100%5'9" vs 5'9"–5'11"
Weight 100%148 lb vs 150–170 lb
Hair 100%Gray vs Gray
80%Moderate
John Doe — San Francisco, California - unidentified case UP146034
John Doe — San Francisco, California
UP146034 • Found Jan 22, 2014
View case
Sex ✓Male
Age 100%Est. 68–82 vs 72 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 30 years after last seen
Height 100%5'8" vs 5'9"–5'11"
Weight 100%83–150 lb vs 150–170 lb
Hair 100%Gray vs Gray
79%Possible
John Doe — San Francisco, California
UP5912 • Found Feb 4, 1986
View case
Sex ✓Male
Age 85%Est. 50–70 vs 72 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 2 years after last seen
Height 68%5'6" vs 5'9"–5'11"
Weight 100%144 lb vs 150–170 lb
Hair 100%Gray vs Gray

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.