Polk 1county, TX has a total of one library without iteration on what is the type of that one library. Red River county, TX has a total of zero library but iterated one school library. This discrepancy originated from 1850 census documentation, Statistic of Texas, Table XIII.
Universe: "Total Libraries" calculated By SE. Universe now reflects aggregated table total. Red Hook County will have 1 library while Polk County will have 0 library.