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William Calvin Missing Person Case

Last seen in Rocklin, California on Aug 1, 1988

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Victim Details

Dec 20, 2012

Nov 21, 2023

William

Calvin

76

38

74 inches

155 lbs

White / Caucasian

Male

Aug 1, 1988

Rocklin

California

Placer County

22362

Rocklin Police Department

Rocklin

California

Placer County

95677

4080 Rocklin Road, California

9166255400

Local

Law Enforcement

https://www.rocklin.ca.us/police

8825314

Rocklin Police Department

Brown

Blue

Blue

Oct 15, 2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP18497) and 4 other sources
William F. Calvin, a 38-year-old dependent adult, was last seen on August 1, 1988, in his hometown of Rocklin, California. Standing 6'2" and weighing around 155 pounds, Calvin had brown hair and blue eyes. At the time of his disappearance, he had visible sores on his forearms, and it is noted that he may have been suffering from health issues, which made him dependent on others.

Despite searches and investigations, there are few details available regarding the circumstances of his disappearance. His case remains classified as endangered missing. Law enforcement agencies, including the Rocklin Police Department, have kept his case open but have not been able to find conclusive leads over the years. Both dental and DNA records are available to aid in identifying him if new evidence emerges.

Authorities continue to seek information that could provide insight into what happened to Calvin, and the case remains unsolved to this day. Anyone with relevant information is encouraged to contact the Rocklin Police Department.
Last Seen: Aug 1, 1988

Links to Additional Sources (4)

See any mistakes? Let us know!
  • William F. Calvin - The Charley Project
  • William F. Calvin | State of California - Department of Justice
  • Missing Person / NamUs #MP18497 | NamUs
  • 272DMCA - William Calvin - Doe Network

    • 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.

    79%Possible
    John Doe — Sausalito, California
    UP17718 • Found Sep 9, 1990
    View case
    Sex ✓Male
    Age 100%Est. 35–45 vs 38 when missing
    Race 100%White
    Location 77%93 mi away, same state
    TimingFound 2 years after last seen
    Height 68%5'11" vs 6'2"
    Weight 100%160 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 70%Gray vs Blue
    77%Possible
    John Doe — Antioch, California - unidentified case UP10735
    John Doe — Antioch, California
    UP10735 • Found Oct 15, 2005
    View case
    Sex ✓Male
    Age 85%Est. 45–65 vs 38 when missing
    Race 100%White
    Location 86%62 mi away, same state
    TimingFound 17 years after last seen
    Height 100%6'1" vs 6'2"
    Weight 100%141 lb vs 155 lb
    Hair 100%Brown vs Brown
    77%Possible
    John Doe — California - unidentified case UP2363
    John Doe — California
    UP2363 • Found Mar 9, 2003
    View case
    Sex ✓Male
    Age 100%Est. 30–45 vs 38 when missing
    Race 100%White
    Location 97%23 mi away, same state
    TimingFound 15 years after last seen
    Height 68%5'11" vs 6'2"
    Hair 100%Brown vs Brown
    76%Possible
    John Doe — Forestville, California
    UP93104 • Found Dec 31, 1994
    View case
    Sex ✓Male
    Age 100%Est. 35–45 vs 38 when missing
    Race 100%White
    Location 77%92 mi away, same state
    TimingFound 6 years after last seen
    Height 100%5'11"–6'1" vs 6'2"
    75%Possible
    John Doe — Napa, California
    UP69733 • Found Dec 14, 2007
    View case
    Sex ✓Male
    Age 100%Est. 28–42 vs 38 when missing
    Race 100%White
    Location 85%66 mi away, same state
    TimingFound 19 years after last seen
    Height 100%6'0"–6'3" vs 6'2"
    75%Possible
    John Doe — Berkeley, California - unidentified case UP12992
    John Doe — Berkeley, California
    UP12992 • Found Nov 2, 2010
    View case
    Sex ✓Male
    Age 100%Est. 50–60 vs 38 when missing
    Race 100%White
    Location 79%84 mi away, same state
    TimingFound 22 years after last seen
    Height 84%6'0" vs 6'2"
    Weight 71%117 lb vs 155 lb
    Hair 70%Gray vs Brown
    Eyes 100%Blue vs Blue
    75%Possible
    John Doe — Nevada
    UP7603 • Found Dec 28, 1993
    View case
    Sex ✓Male
    Age 100%Est. 40–50 vs 38 when missing
    Race 100%White
    Location 65%150 mi away
    TimingFound 5 years after last seen
    Height 100%6'1" vs 6'2"
    Weight 74%191 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 0%Brown vs Blue
    75%Possible
    John Doe — Reno, Nevada
    UP8426 • Found Aug 7, 1993
    View case
    Sex ✓Male
    Age 100%Est. 37–45 vs 38 when missing
    Race 100%White
    Location 77%92 mi away
    TimingFound 5 years after last seen
    Height 68%5'11" vs 6'2"
    Hair 100%Brown vs Brown
    75%Possible
    John Doe — San Francisco, California
    UP5927 • Found Oct 2, 1989
    View case
    Sex ✓Male
    Age 85%Est. 30–50 vs 38 when missing
    Race 100%White
    Location 76%95 mi away, same state
    TimingFound 14 months after last seen
    Height 84%6'0" vs 6'2"
    Weight 50%205 lb vs 155 lb
    Hair 100%Brown vs Brown
    75%Possible
    John Doe — Sacramento, California
    UP2386 • Found Sep 30, 1989
    View case
    Sex ✓Male
    Age 85%Est. 40–60 vs 38 when missing
    Race 100%White
    Location 97%20 mi away, same state
    TimingFound 14 months after last seen
    Hair 60%Black vs Brown

    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.

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    Forum Posts (1)

    William F. Calvin was 38 and classified as an endangered missing dependent adult when he was last... ...Read More
    08/20/2023

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