KEARNEY, Mo. (AP) -- An effort to determine whether a 19th century outlaw is buried in a northwest Missouri grave will be postponed indefinitely.

Researchers want to determine if Clell Miller, who rode with Jesse James, is buried in the Miller family plot in Muddy Fork Cemetery in Kearney. The grave was to be exhumed on Oct. 8.

But the Jackson County medical examiner's office recently confirmed that four people are buried in the family plot. They could not determine which of the four graves might hold Miller's remains.

The Kansas City Star reports (http://bit.ly/QvqipV ) researchers want to take DNA from the remains in Miller's grave to see if they match a descendant. The family believes Miller is buried there but some researchers believe his skeleton was never placed in the grave.

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Information from: The Kansas City Star, http://www.kcstar.com