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Gerald Montrio Missing Person Case

Last seen in Plymouth, Massachusetts on Sep 9, 1957

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Victim Details

Apr 27, 2012

Jul 21, 2023

Gerald

Montrio

84

15

72 inches

140 lbs

White / Caucasian

Male

Sep 9, 1957

Plymouth

Massachusetts

Plymouth County

21979

Massachusetts State Police - Middleboro Barracks

Middleborough

Massachusetts

Plymouth County

02346

326 West Grove Street, Massachusetts

5089472222

State

Law Enforcement

https://www.mass.gov/locations/state-police-middleboro-barracks

2012-113-0285

Massachusetts State Police - Middleboro Barracks

Black

Brown

Brown

No

Oct 3, 2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP14586) and 12 other sources
On September 9, 1957, 15-year-old Gerald Montrio and his best friend, Robert Rasmussen, disappeared from Plymouth, Massachusetts. The boys left their homes around 3:00 p.m. to go swimming in Massachusetts Bay. Later that day, their clothing was found neatly folded on Flat Rock by Plymouth Harbor, leading authorities to believe the boys had drowned. However, their bodies were never recovered despite extensive searches, including efforts by the U.S. Coast Guard.

Witnesses reported seeing two boys getting in and out of a boat near the harbor, and another claimed to have heard cries for help from the direction of the beach. Some also speculated the boys may have staged their disappearance, as both came from troubled homes and had previously discussed running away to escape their difficult lives. Gerald's sister and Robert's family never believed they drowned, holding onto the hope that they ran away and possibly headed west.

To this day, the mystery remains unsolved, and neither boy has been found. Gerald, originally from Bermuda, spoke both English and Spanish and was known for being mature for his age. His family still hopes for answers more than six decades later.
Last Seen: Sep 9, 1957

Links to Additional Sources (12)

See any mistakes? Let us know!
  • Gerald Montrio - The Charley Project
  • Missing Person / NamUs #MP14586
  • Gerald Montrio | International Missing Persons Wiki - Fandom
  • The Vanishing of Robert Rasmussen and Gerald Montrio - YouTube
  • The Case of Gerald Montrio and Robert Rasmussen - uncanny
  • Sisters break their silences - Milford Daily News
  • Robert Rasmussen - The Charley Project
  • Missing Person Alert Let's go back. Name: Gerald Montrio NamUs ...
  • Gerald Montrio Jr. - The Charley Project
  • [DOC] Gerald Montrio - For the Lost
  • Gerald Montrio (15) & Robert Rasmussen (13) - Plymouth MA, 1957
  • Flashback Friday: Gerald Montrio - The Charley Project Blog

    • 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.

    78%Possible
    John Doe — Lynn, Massachusetts - unidentified case UP15537
    John Doe — Lynn, Massachusetts
    UP15537 • Found Aug 4, 2006
    View case
    Sex ✓Male
    Age 100%Est. 58–72 vs 15 when missing
    Race 100%White
    Location 93%38 mi away, same state
    TimingFound 49 years after last seen
    Height 84%5'10" vs 6'0"
    Weight 100%143 lb vs 140 lb
    Hair 70%Gray vs Black
    Eyes 100%Brown vs Brown
    77%Possible
    John Doe — Everett, Massachusetts - unidentified case UP15890
    John Doe — Everett, Massachusetts
    UP15890 • Found May 2, 2016
    View case
    Sex ✓Male
    Age 100%Est. 55–60 vs 15 when missing
    Race 100%White
    Location 93%37 mi away, same state
    TimingFound 59 years after last seen
    Height 100%5'11" vs 6'0"
    Weight 96%157 lb vs 140 lb
    Hair 70%Gray vs Black
    77%Possible
    John Doe — Sharon, Massachusetts - unidentified case UP16369
    John Doe — Sharon, Massachusetts
    UP16369 • Found Jun 6, 1986
    View case
    Sex ✓Male
    Age 100%Est. 18–22 vs 15 when missing
    Race 100%White
    Location 95%29 mi away, same state
    TimingFound 29 years after last seen
    Height 52%5'8" vs 6'0"
    Weight 100%135 lb vs 140 lb
    Hair 100%Black vs Black
    Eyes 100%Brown vs Brown
    77%Possible
    John Doe — Burlington, Massachusetts - unidentified case UP14005
    John Doe — Burlington, Massachusetts
    UP14005 • Found May 22, 1975
    View case
    Sex ✓Male
    Age 100%Est. 25–35 vs 15 when missing
    Race 100%White
    Location 90%46 mi away, same state
    TimingFound 18 years after last seen
    Height 100%6'0" vs 6'0"
    Hair 60%Brown vs Black
    76%Possible
    John Doe — East Boston, Massachusetts
    UP53220 • Found Sep 5, 2018
    View case
    Sex ✓Male
    Age 100%Est. 68–82 vs 15 when missing
    Race 100%White
    Location 93%34 mi away, same state
    TimingFound 61 years after last seen
    Height 84%5'10" vs 6'0"
    Weight 96%123 lb vs 140 lb
    Hair 70%Gray vs Black
    76%Possible
    John Doe — Lowell, Massachusetts - unidentified case UP15888
    John Doe — Lowell, Massachusetts
    UP15888 • Found Mar 12, 2016
    View case
    Sex ✓Male
    Age 100%Est. 55–60 vs 15 when missing
    Race 100%White
    Location 87%57 mi away, same state
    TimingFound 59 years after last seen
    Height 100%6'0" vs 6'0"
    Weight 97%156 lb vs 140 lb
    Hair 70%Gray vs Black
    76%Possible
    John Doe — Methuen, Massachusetts - unidentified case UP14202
    John Doe — Methuen, Massachusetts
    UP14202 • Found Oct 28, 2000
    View case
    Sex ✓Male
    Age 100%Est. 35–45 vs 15 when missing
    Race 100%White
    Location 87%59 mi away, same state
    TimingFound 43 years after last seen
    Height 100%5'11"–6'5" vs 6'0"
    Weight 84%165 lb vs 140 lb
    Hair 60%Brown vs Black
    75%Possible
    John Doe — Lunenburg, Massachusetts - unidentified case UP14702
    John Doe — Lunenburg, Massachusetts
    UP14702 • Found Jul 7, 2011
    View case
    Sex ✓Male
    Age 100%Est. 40–45 vs 15 when missing
    Race 100%White
    Location 84%70 mi away, same state
    TimingFound 54 years after last seen
    Height 100%6'1" vs 6'0"
    Weight 100%140 lb vs 140 lb
    75%Possible
    John Doe — Brookline, Massachusetts - unidentified case UP15757
    John Doe — Brookline, Massachusetts
    UP15757 • Found Apr 17, 2007
    View case
    Sex ✓Male
    Age 100%Est. 60–65 vs 15 when missing
    Race 100%White
    Location 93%35 mi away, same state
    TimingFound 50 years after last seen
    Height 100%6'0" vs 6'0"
    Weight 0%237 lb vs 140 lb
    Hair 70%Gray vs Black
    Eyes 100%Brown vs Brown
    75%Possible
    John Doe — Medford, Massachusetts - unidentified case UP16439
    John Doe — Medford, Massachusetts
    UP16439 • Found Jul 25, 1984
    View case
    Sex ✓Male
    Age 85%Est. 20–40 vs 15 when missing
    Race 100%White
    Location 92%39 mi away, same state
    TimingFound 27 years after last seen
    Height 100%6'1" vs 6'0"
    Weight 77%170 lb vs 140 lb
    Hair 60%Brown vs Black

    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)

    On September 9, 1957, 15-year-old Gerald Montrio and his best friend, Robert Rasmussen left their... ...Read More
    09/17/2024

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