A general digest of the acts of the legislature of Louisiana:
passed from the year 1804, zo 1827, inclusive, and in force at this last period, Volume 2 (Google eBook)
Louis Moreau Lislet
See also LAGenWeb Archive – East Carroll, Madison, Ouachita
This map was created in 1816 two years after the dissolution so to speak of Warren Parish into Concordia and Ouachita Parish. You can see a place name, Warren in the Northeastern portion of Louisiana in Concordia Parish, just East of what appears to say Walmart Hills, Mississippi – Oh no, that reads Walnut Hills, Mississippi, sorry. LOL
Warren Parish was formed from Concordia in 1811 according to URL and was abolished in 1814.