123948
The property was purchased by Robert Barnwell Roosevelt ( 1829 – 1906 ) in 1873 ; his son John Ellis Roosevelt ( 1853 – 1939 ) commissioned the estate .
 Robert Barnwell Roosevelt, Roosevelt
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Robert Barnwell Roosevelt, Roosevelt