In the 1930s and 1940s a statewide project was begun by the WPA Work Projects Administration). This project was to find and photograph Naturalization Records before 27 September 1906.
All copies were to be deposited with INS (Immigration & Naturalization Service) but when the WPA was disbanded in 1942,only a few states and districts were complete.
With the help of a wonderful volunteer, I have begun putting an index online for Arkansas Naturalization Records 1809-1906
http://naturalizationrecords.com/usa/ar_onlinedb.shtml
As always, all records on all my sites are free to all researchers. Please let pages load fully, then *read* the introduction and explanations before you begin clicking on links :-)
An overview of what records exist for Arkansas and where they can be found is at Arkansas Naturalizations at
http://naturalizationrecords.com/usa/arkansas.shtml