3514
This had only been achieved three times previously in the entire history of first-class cricket : by Bill Copson in 1937 , William Henderson in 1938 and Pat Pocock in 1972 .
 Bill Copson, William Henderson, Pat Pocock
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Bill Copson, William Henderson, Pat Pocock