For much of the last century, Amelia Earhart's lambskin leather aviator helmet was wrapped in a plastic bag and tucked amid tissue in a shirt box in Austin, Minn. Austin is where Elinor "Ellie" Twiggs ...

The response from the experts was always the same: So, your mom told you this aviator's helmet belonged to Amelia Earhart? That's great, they'd say, but we're going to need a little more proof. That ...