Northwest Orient ... only known mass burial grave site for victims was at Riverview Cemetery in St. Joseph. That site was found in 2008. Another mass burial site for 2501 crash victims was ...

The plane, a Northwest Airlines ... but no sign of Flight 2501. In September 2008, Valaire Van Heest, a researcher investigating the crash, found an unmarked grave she believed contained the ...

In the episode, host and explorer Josh Gates investigates the 70-year-old mystery of Northwest Orient flight ... Years later, two unmarked grave sites were identified which are believed to hold ...

The 1951 crash of Northwest Airlines Flight 2501 in Lake ... The recent discovery of an unmarked mass grave for the victims led Van Heest to organize a memorial for the three crew and 55 passengers.

SOUTH HAVEN, MI -- It's been 65 years since Northwest Airlines Flight 2501 disappeared over Lake Michigan. On Wednesday, a memorial service will be held at a recently discovered grave site of ...

Valerie van Heest believes she has unraveled the 63-year-old mystery of Northwest Airlines Flight ... MSRA was also able to locate an unmarked grave of victim remains in Riverview Cemetery in ...

Northwest Orient Flight 2501 crashed somewhere ... leafing through a plot registry and stumbled across a mass grave of Flight 2501 victims that had never been marked. For more than six decades ...

It's one of the Great Lakes' most enduring mysteries: What happened to Northwest Airlines Flight 2501? The Douglas DC4 ... to family members — in unmarked graves in cemeteries in St. Joseph ...