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Case Description

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Summary based on the NamUs case record (MP22205) and 1 other source
On July 18, 1992, a 35-year-old woman named Catherine Sears, also known as Cathy, was looking forward to a weekend getaway on Beaver Island, Michigan. She, along with her husband Ray Sears, and another couple, Tom and Peggy Lammon, departed from Battle Creek, Michigan, in a single-engine 1978 Cessna 172 piloted by Tom. The group was from the Kalamazoo area, where Cathy worked at Davenport College. What began as a promising trip on a muggy Saturday morning took a tragic turn as the plane flew north. Around noon, as the aircraft prepared to land and was approximately 35 miles from Beaver Island near the Leelanau Peninsula, it vanished from radar screens.

The disappearance prompted an immediate and widespread search effort involving state and county authorities, the Civil Air Patrol, and the U.S. Coast Guard. For weeks, search teams scoured the vast expanse of Lake Michigan, but their efforts yielded no signs of the plane or the four people on board. The families of the missing couples also participated in the desperate search, hoping for any news. It wasn't until August 3rd that a small aircraft tire and some fiberglass pieces, matching the color of the missing Cessna, were discovered floating near the shore at Good Hart. This discovery led to intensified search and recovery operations in that area, but tragically, no further traces of the plane or its occupants were ever found.

The case of Catherine Sears and her companions remains an unsolved mystery. The official investigation could not determine the cause of the plane's disappearance, and with no wreckage recovered, the final moments of the flight are unknown. Catherine's husband, Ray, was 37 at the time of the disappearance. The pilot, Tom Lammon, was 34, and his wife, Peggy Sue, was 31. The lack of a debris field has left investigators and family members without answers for decades. The plane, a white 1978 Cessna with brown trim and the tail number N4500E, seemingly vanished into the skies over Lake Michigan, leaving behind a legacy of unanswered questions and enduring grief for the families of the four friends who were lost that day.

Last Seen: Jul 18, 1992

Links to Additional Sources (1)

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Possible Unidentified Matches (1)

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.

76%Possible
Jane Doe — Curtis Township, Michigan - unidentified case UP8371
Jane Doe — Curtis Township, Michigan
UP8371 • Found Oct 26, 1994
View case
Sex ✓Female
Age 85%Est. 30–50 vs 35 when missing
Race 100%White
Location 72%115 mi away, same state
TimingFound 2 years after last seen
Height 84%5'2" vs 5'4"
Weight 95%135 lb vs 120 lb
Hair 100%Brown 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.

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