What Original Source Did David Barton Use for His Louis L'Amour Story?

Remember this?
Barton said he got his story about elementary school kids threatening an intruder in a one-room Old West school from a novel by Louis L’Amour. L’Amour was an Americana fiction writer who in 1986 provided Barton with some historical material he used in 2013.
I thought of Barton’s use of that third hand source yesterday when his son Tim told Gateway Church representative Kerry Wood that Wallbuilders only uses original sources for their materials. Barton said professors just have ideas, not sources. Back in 2013, Barton told Glenn Beck that in the 1850s, elementary school kids took guns to school and once saved a teacher from a would be attacker. Since the kiddies had their guns at school, they deterred the attacker from shooting their teacher.
Barton’s source for this story turned out to be a Louis L’Amour fictional novel Bendigo Shafter. Barton later admitted this but said it was fine because L’Amour said the story was true. Barton transcribed an audiotaped 1986 interview with L’Amour as follows:

There’s a case I [L’Amour] use in one of my stories; I use it in the story called Bendigo Shafter. All the kids coming to school used to hang their guns up in the cloakroom because they were miles from home sometimes, and it was dangerous to ride out without a gun. And this is taken from an actually true incident. I use it in my story and tell the story, but it really happened. Now a man came to kill the teacher. It was a man. And he came with a gun, and all the kids liked the teacher, so they came out and ranged around him with their guns. That stopped it. But kids twelve and thirteen used to carry guns to school regularly.

In 1986, L’Amour said the story was true but he didn’t point to any original source as Barton’s son insists is necessary. Without knowledge of the source of the story, Barton changed the details around (e.g., elementary kids instead of those aged 12-13 years) and presented it to Beck and the world as a historical fact.
First, watch Tim Barton tell his guests that the Bartons always use the original sources and then listen to Barton’s yarn to Glenn Beck about the gun-totin’ kiddies.

Maybe it did happen, maybe it didn’t. However, when Barton is telling the story, it is apparently fine to go third hand. When Barton is selling the story, the pitch includes all of those original documents.
This original source pitch is silly. Does Barton have the original copy of the Bible? The Constitution? We all have access to the primary sources for our governing documents. He may have some original documents, but if they are historically significant, they are archived for review by scholars. Good scholars use primary documents. Barton’s assertions here are fact free.
Barton is no stranger to second and third hand sourcing. For instance, his claim about Thomas Jefferson giving his edited version of the Gospels to Indian missionaries is third hand; there is no original source for that one.
See the following links for stories where Barton does not rely on primary/original sources.
David Barton Praises Primary Sources and Then Cites a Third Hand Jefferson Quote
Debunking One of David Barton’s Oldest Stories: Thomas Jefferson and the DC Schools
David Barton Claims Historians Don’t Use Original Sources and That is Why They Attack His Work (James O’Kelly story)
David Barton Uses Jefferson Quote He Says is Unconfirmed (see also this post on the Webster quote)
 

What is the Source for David Barton's Kids with Guns Story? (UPDATED)

UPDATE (2/26/13) – David Barton responded to this post on his website, admitting that the kids with guns story came from a Louis L’Amour novel.  He claims that sharing this story as historical fact is alright since L’Amour claimed the story was true. I examine that claim and compare it to the story of George Washington and the cherry tree in this post: David Barton, Kids, Guns and Historical Fiction.
…………….
(Original post begins here)
On January 16, on the Glenn Beck Show, David Barton claimed that the National Rifle Association was started in part to arm newly freed slaves against the KKK and that Ronald Reagan opposed the Brady Bill. However, these claims are false.
In that broadcast, Barton also related a story about a school in the 1850s where school children stopped the murder of their teacher by pulling their guns on a would-be assailant. The story sounded fishy at the time but he did not give any details which would allow the facts to be checked out.
Now Chris Rodda is wondering if the story may have been lifted from a Louis L’Amour novel. After reading her post on the matter, I wonder the same thing.  Go read it and see what you think. Here is what Barton said on Beck’s show:

The great example, in the 1850s you have a school teacher who’s teaching. A guy — he’s out in the West — this guy from New England wants to kill him and find him. So he comes into the school with his gun to shoot the teacher, he decides not to shoot the teacher because all the kids pull their guns out and point it at him and say, ‘You kill the teacher, you die.’ He says, ‘Okay.’ The teacher lives. Real simple stuff. Saved the life of — there was no shooting because all the kids — we’re talking in elementary school — all the kids pull their guns out and says, ‘We like our teacher. You shoot our teacher, we’ll kill you.

One of Rodda’s readers thought the story might have come from a Louis L’Amour Western novel (as did this Crooks and Liars commenter). Go read the account from the novel in Rodda’s post but the punch line is that it sounds remarkably like the L’Amour fiction. In response, Rodda issued a challenge for Barton to produce the historical source for his claim.  With this post, I join in asking for the source.
While the story is somewhat far fetched and perhaps even a little humorous, the challenge raised by Rodda is a serious matter. Mr. Barton’s and his defenders now have a perfect opportunity to verify this claim and to address his wounded credibility. Will he do it?
UPDATE: Here is the entire chapter in the L’Amour book where the school teacher is saved by his gun-totin’ students. Here is another chapter which describes the kids bringing guns to school.