What's behind it, you'd never expect.

That’s what happened to Sam Eastman this past weekend.

"It's shocking," said Eastman’s mother, Cherry Price.

"It was just down underneath here. This toolbox was over here," explained Eastman as he pointed to where he made his discovery. “I pulled it all out so I could sweep and clean it up. And there was a Tupperware container, dirty Tupperware container.”

It was a Tupperware bowl containing the cremated remains of a woman named Doris Dunkelberger.

"First I was going to throw it away. And then I opened it up and there's a little tag inside - it has her name on it, when she was cremated and how old she was - to the day," said Eastman.

It also included the location where Dunkelberger was cremated, Weaver Crematory in Beaumont, Calif.

7NEWS contacted Weaver and they are looking through their records in an effort to find a family member of Dunkelberger.

Eastman's mother and father have been in their Arvada home for 18 years, and so – apparently – has Dunkelberger. At least that long.

“I can't sleep. I was wondering about the lady all night. Poor lady, laying there in the garage all these years," said Price.

The card inside the container says Dunkelberger was cremated on August 4, 1984.

We searched the property records for the Arvada home and found the previous two owners. One appears to be deceased and the other has a number no longer in service.

“I think it got lost along the way. Somebody set it there, was going to take it with them, and forgot," said Price.

Oh sure, the Price’s have cleaned the garage before, but they haven’t moved the toolbox since the day they moved in.

“I have cleaned this garage many a time,” said Eastman.

“My husband pushed his toolbox in there and shoved it against the wall. We never looked behind it,” said Price.

So for now, Price and her family wait, as they put word out in hopes of finding Dunkelberger's family.

“Because everybody deserves to rest in peace. And you're not resting in peace if you're in a tupperware bowl," said Price.

The crematory in Beaumont, Calif. is actually still open and it's owned by the same company that owns Olinger Crown Hill in Wheat Ridge.

So, Olinger has offered to take Dunkelberger's remains as the company combs through its old records trying to find this woman's family.

Industry experts say the California crematory should have family records.

"This is a 102 year-old cemetery here at Crown Hill and (our records) go back that far," said Michael Whatley, sales manager at Olinger Crown Hill Mortuary and Cemetery.

Whatley said, unfortunately, cremated remains are being found more and more often for two primary reasons. Families leave them behind when they can't afford to do something with them. Or, family members grow old themselves and misplace them.

Whatley said cremated remains pose no health risks to you or your family, but if you discover them – you should contact a funeral home so they can take care of them respectfully.