They are part of the collection of the Missouri State Museum. Exhibits are on the first floor of the Capitol building, but a significant collection of artifacts donated over the years is housed elsewhere in Jefferson City. Several original papers from the Civil War were donated, including these two sets of account ledgers. Each set has about 150 officers listed of the 6th Division MSG. There is no online access to the ledgers. To view the ledgers you would need to send a request to Kate Owens, Curator of Collections. I have paper copies of the pages printed from an electronic scan if there is some specific name you're seeking.