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Oxfordian activity Ogburn was drawn into the Shakespeare authorship question when leading Oxfordian Charles Wisner Barrell approached him for assistance in a lawsuit against Folger Shakespeare Library Director Giles Dawson for libel in response to comments made after Barrell published in Scientific American an article claiming that the Ashbourne portrait of " Shakespeare " was an overpainted original of Edward de Vere .
 Ogburn, Charles Wisner Barrell, Barrell, Edward, Vere
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ogburn, Charles Wisner Barrell, Barrell, Edward, Vere