I think this is Patrick Sanders' Company as listed in the Dandrige McCrea Papers as part of the 4th Arkansas State Troops.

Dandridge McRae papers
http://ark-cat.com/browse/fulldetail.aspx?id=181

49. Muster roll, Captain P.H. Sanders' Company, Infantry Battalion, Second Regiment, Arkansas Volunteers (organized in Madison County, 1861 May 22) [men 1-49 missing from list]