Statistics for occurrence #1 of “West Virginia” in entry iron-and-steel of Harper's Encyclopedia of United States History:

... their order and with their respective outputs were: Michigan, 9,146,157 long tons; Minnesota, 8,161,289 long tons; Alabama, 2,662,943 long tons; and Pennsylvania, 1,009,327 long tons. Virginia and West Virginia combined ranked next with 986,476 long tons. The contributors to the aggregate output were twenty-four States and Territories, and the increased production was principally in Michigan and Minne...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
West Virginia (West Virginia, United States) 4,494 272 0 0 0 user votes
West Virginia (New Mexico, United States) 0 0 0 0 0 user votes

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