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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 (MP24464) and 5 other sources
In the spring of 1916, in the small city of Longmont, Colorado, John William Gates, a 33-year-old husband and father of three, disappeared without a trace. On April 23rd of that year, he left his home and was never seen or heard from again. His wife, left with their young children, had no information about his whereabouts. A year later, in May 1917, necessity led her to file for 'Mother's Compensation' with the Boulder County Court. In her application, she described her husband as a 'good provider, and good husband, and kind father,' stating that he left for 'no reason known' to her and that she feared he had 'met with an accident.' This official document provides one of the few contemporary records of his disappearance, painting a picture of a stable family life abruptly shattered.

John William Gates, born in Iowa in the early 1880s, had moved to Colorado before 1900, initially working as a farm laborer. In 1903, he married and settled in Longmont. By 1910, his occupation was listed as a 'teamster in transfer,' a role his family understood to involve hauling supplies to miners in the mountains. This detail forms the basis of one of the prevailing theories about his disappearance. Given the rugged terrain and the nature of his work, it is believed he may have been involved in an accident, his wagon possibly running off a mountain road. During this period, the demand for tungsten for World War I had led to the operation of several mines in the area, making such journeys common and perilous. It is conceivable that his remains were discovered in the mountains years later but never identified.

Over the decades, the absence of concrete evidence has allowed various theories to take root within the family and community. Beyond the possibility of a tragic accident, there have been persistent rumors of foul play, including a story that he was murdered. One version of this theory suggests a dispute with a brother-in-law over a mining partnership, though no evidence has ever substantiated this claim. Another, less supported speculation is that he may have voluntarily abandoned his family, perhaps to start a new life or enlist in the war under a different name. However, this seems to contradict his wife's description of him as a devoted family man. The case of John William Gates remains an unsolved mystery, a poignant story of a family left in limbo. With no paper trail, no discovered remains, and no definitive answers, his disappearance is a cold case that has endured for over a century, leaving generations to wonder about the fate of the young husband and father who vanished on that Easter Sunday.

Last Seen: Apr 23, 1916

Possible Unidentified Matches (7)

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.

80%Moderate
John Doe — Boulder, Colorado
UP61119 • Found Jun 20, 1971
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Sex ✓Male
Age 100%Est. 38–52 vs 33 when missing
Race 100%White
Location 99%14 mi away, same county
TimingFound 55 years after last seen
Height 100%5'8"–5'10" vs 5'9"–6'0"
Weight 100%170–180 lb vs 160–180 lb
Hair 100%Brown vs Brown
78%Possible
John Doe — Denver, Colorado - unidentified case UP7170
John Doe — Denver, Colorado
UP7170 • Found Sep 17, 1988
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Sex ✓Male
Age 100%Est. 60–70 vs 33 when missing
Race 100%White
Location 95%30 mi away, same state
TimingFound 72 years after last seen
Height 100%5'11" vs 5'9"–6'0"
Weight 94%138 lb vs 160–180 lb
Hair 70%Gray vs Brown
77%Possible
John Doe — Fort Collins, Colorado - unidentified case UP4813
John Doe — Fort Collins, Colorado
UP4813 • Found Sep 16, 1994
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Sex ✓Male
Age 100%Est. 25–35 vs 33 when missing
Race 100%White
Location 95%29 mi away, same state
TimingFound 78 years after last seen
Height 100%5'9" vs 5'9"–6'0"
Weight 96%140 lb vs 160–180 lb
Hair 60%Black vs Brown
77%Possible
John Doe — Denver, Colorado - unidentified case UP7160
John Doe — Denver, Colorado
UP7160 • Found Apr 25, 1980
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Sex ✓Male
Age 100%Est. 40–50 vs 33 when missing
Race 100%White
Location 95%30 mi away, same state
TimingFound 64 years after last seen
Height 100%5'10" vs 5'9"–6'0"
Weight 76%123 lb vs 160–180 lb
Hair 60%Black vs Brown
77%Possible
John Doe — Cheyenne, Wyoming
UP131770 • Found Apr 11, 1977
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Sex ✓Male
Age 100%Est. 40–55 vs 33 when missing
Race 100%White
Location 84%69 mi away
TimingFound 61 years after last seen
Height 100%6'0" vs 5'9"–6'0"
Weight 100%180 lb vs 160–180 lb
Hair 100%Brown vs Brown
76%Possible
John Doe — Denver, Colorado - unidentified case UP13758
John Doe — Denver, Colorado
UP13758 • Found Nov 5, 1990
View case
Sex ✓Male
Age 100%Est. 30–40 vs 33 when missing
Race 100%White
Location 95%30 mi away, same state
TimingFound 75 years after last seen
Height 84%5'7" vs 5'9"–6'0"
Weight 73%120 lb vs 160–180 lb
Hair 100%Brown vs Brown
75%Possible
John Doe — Commerce City, Colorado
UP14608 • Found Sep 12, 1980
View case
Sex ✓Male
Age 100%Est. 60–75 vs 33 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 64 years after last seen
Height 100%6'0" vs 5'9"–6'0"

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.

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