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Thomas O'Connor ( 1770 – 1855 ) was an Irishman who in 1801 emigrated from County Roscommon , Ireland , to New York where he devoted himself chiefly to journalism .
 County Roscommon, New York
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 County Roscommon, New York