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Henry Thoby Prinsep ( 1792 – 1878 ) was an English official of the Indian Civil Service , and historian of India .
 Thoby Prinsep
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Thoby Prinsep