You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Atchison County is named after a major general in the Missouri State Militia of what year?" whose answer is 1838.
Each document should contain about 30 words, and these documents should contain useful information.

Query: David Rice Atchison Missouri State Militia year
Useful Output:

Doc 1: David Rice Atchison was a Missouri Democrat who served in the US Senate from 1843 to 1855. Raised and educated in Kentucky, he settled in Missouri and opened a
Doc 2: "David Rice Atchison was a proslavery leader from Missouri. He represented that state in the U.S. Senate from 1843 to 1855. He was involved in
Doc 3: In September 1861, Atchison led 3,500 State Guard recruits across the Missouri River to reinforce Price, and defeated Union troops that
Doc 4: Atchison was a Major General of the state militia, not the Missouri State Guard. He briefly led the 4th division MSG with his militia rank. See
Doc 5: A fiercely pro-slavery Democrat from Missouri, Atchison was involved in several conflicts connected to the Kansas Territory and in 1843 he was