346487
After an eight-month search , authorities located William Cantwell Walters , who worked as a peripatetic handyman , specializing in the tuning and repair of pianos and organs , and traveling through Mississippi with a boy who appeared to match the description of Bobby Dunbar .
 Mississippi, Bobby Dunbar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mississippi, Bobby Dunbar