169360
One of Waller 's sons , Frederick William Waller ( 1848 – 1933 ) was articled to his father and was in partnership with him from 1873 .
 Waller, Frederick, Waller
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Waller, Frederick, Waller