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Mills Manufacturing Company was organized during the mid-1890s by entrepreneur Otis Prentiss Mills ( 1840-1915 ) , a native of Henderson County , North Carolina , and a former Confederate officer .
 Henderson County , North Carolina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Henderson County , North Carolina