I relied on John M. Harrell's book for the organzation of the 7th Arkansas. I am finding a lot of errors in this information. Chime in if you have a better list regimental staff and company commanders. I wounder if the companies letters changed when the unit went from state service to Confederate service?

The regimental staff at the time of organization of the 7th Arkansas were: (Col. John M. Harrell, "Confederate Military History, a library of Confederate States", Military History: Volume 10.2, Arkansas Clement Anselm Evans, Ed., Page 301, Accessed 21 July 2011, http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A2001.05.0254%3Achapter%3D11%3Apage%3D3013)

* Col. Robert G. Shaver,
* Lt. Col. William R. Cain,
* Maj. James T. Martin.
* John M. Dean, Adjutant,
* H.C. Tunsell, Quartermaster,
* John S. Shaver, Commissary
* Dr. Bohannon, Surgeon,
* Dr. Hoadley, Assistant Surgeon

The company officers at the time of organization were:

* Company A, Captain John C. McCauley, of White County;
* Company B, Captain George B. Orme, "Glaize Rifles," of Jackson County;
* Company C, Captain James T. Martin, of Randolph County, elected major of the regiment, replaced by his brother, J.H. Martin;
* Company D, Captain D. G. Deason, of Izard County;
* Company E, Captain Michael V. Shaver, of Fulton County;
* Company F, Captain (Rev.) John H. Dye, the "Pike Guards", of Independence County;
* Company G, Captain Carney C. Straughan, of Lawrence County;
* Company H, Captain James F. Archer of Marion County;
* Company I, Captain Thomas J. Mellon, of Randolph County;
* Company K, Captain Ganum Brightwell, the "Arkansas Guards", of Independence County.