I am trying to figure out what happend to the second battery that Captain John G. Reid commanded, the one that he commanded a Prairie Grove. Danny Odom supplied several sources that mention Reid in the build up to Prairie Grove

August 17, 1862
Camp Cooper HQ Missouri brigade C.S.A.-Gen Raines
Per Hindman's orders to organize company of artillery with good officers -that company is nearly completed due to energy of Capt Wesley Roberts.......a subsequent order has assigned Capt Reid as Capt of artillery
he is in many respects objectionable to the men of the company as well as to myself and I desire that Capt Reid be relieved and Capt Roberts apptd and that I be allowed to nominate the other officers of my command

Although we know Ried was in commad at Prairie Grove, is there a chance that after the battle Raines went ahead and changed Reid for Roberts and thus Reid's Battery became Roberts Battery? I found the follwong information on Captain Wesley Roberts Battery..

1st Battery, Missouri Light Artillery - Confederate

Brief History

"Units of the Confederate States Army" by Joseph H. Crute, Jr. contains no history for this unit. [1]

Also known as Captain Wesley Roberts' Company of Artillery.

Also known as Henry Guibor's Light artillery Battery - mustered at Van Buren, Arkansas

Also known as Emmett McDonalds's St. Louis Battery - mustered at Springfield, Missouri

The information about the companies is from Kenneth E. Weant's Civil War Records: Missouri State Guard and Confederate Artillery Batteries plus William Quantrill's Company and Miscellaneous Records, Volume 1, pages 39-41, 58-61, and 67-68 (Arlington, Texas : K.E. Weant, 2009). FHL book 977.8 M2wkq v. 1.