The 18th Arkansas Infantry (Marmaduke's) (1861–1865) was a Confederate Armyinfantryregiment during the American Civil War. The unit was also briefly identified as the 1st Arkansas Infantry Battalion. The unit was most often referred to as the 3rd Confederate Infantry Regiment. The designation "Confederate Infantry Regiment" was intended to convey the difference between Provisional Confederate Army units and Regular Confederate Army Units, with Provisional units being those regiments who received a state designation such as "XX Arkansas Infantry Regiment". In practice, the designation was most often utilized when Regiments were assembled utilizing companies from more than one Confederate state. The "3rd Confederate Infantry Regiment" is occasionally misidentified as the 3rd Arkansas Infantry Regiment commanded by Colonel Van H. Manning.
^Sikakis, Stewart, Compendium of the Confederate Armies, Florida and Arkansas, Facts on File, Inc., 1992, ISBN978-0-8160-2288-5, page 82
^United States. War Dept. The War of the Rebellion: A Compilation of the Official Records of the Union And Confederate Armies. Series 1, Volume 20, In Two Parts. Part 1, Reports., Book, 1887, Page 173; digital images, (http://texashistory.unt.edu/ark:/67531/metapth154629/m1/183/?q=Arkansas%20Infantry : accessed February 17, 2012), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting UNT Libraries, Denton, Texas.
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