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The army saw no further action that year , but privateers that Knox and fellow Massachusetts native Henry Jackson invested in were not as successful as they hoped ; many of them were captured by the British .
 Knox, Massachusetts, Henry Jackson
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Knox, Massachusetts, Henry Jackson