74158
In 1839 Finnis , with William Hampden Dutton and Duncan McFarlane , purchased 4000 acres ( the Mount Barker Special Survey , the first such ) , to the chagrin of John Barton Hack , who was squatting there and had no intimation of the Special Survey .
 Finnis, John Barton Hack
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Finnis, John Barton Hack