The best collection of Arkansas newspapers is at the Arkansas History Commission. The Family History Library has not acquired copies of Arkansas newspapers, but the following guides can help you locate and search Arkansas newspapers:
Union List of Arkansas Newspapers, 1819-1942. Little Rock, Arkansas: Historical Records Survey, 1942. (Family History Library film 897366 item 2; fiche 6051358.)
Morgan, James Logan. Arkansas Newspaper Index, 1819-1845: Index to Obituaries, Biographical and Probate and Chancery Notices. Newport, Arkansas: Morgan Books, 1981.
Allsopp, Fred W. History of the Arkansas Press for a Hundred Years and More. 1922. Reprint. Easley, South Carolina: Southern Historical Press, 1978.