Doesn't that kinda presume that there are others here who believe that the Donner Party was running guns?
If you get your river gold nuggets, you're panning for gold. If you dig up someone else's buried gold you're discovering a cache and making us all envious.
If you're talking about the "Buried Treasure Found" article, it was originally published in the
The Semi-Weekly New Era Lancaster, Pennsylvania • Sat, May 23, 1891 Page 3. Now granted, this does provide some support for your belief that the Donners may have buried coins when they were stranded. But that article is still fairly tenuous, and if taken at face value my guess would be that old man Reynolds found it. If you're really serious about this, I'd suggest following the only real clue found within it: The reference to "Mrs. Graves". At the top of the list I would try to determine if she is credible, or if she is a dingbat.