140215
Ambrose purchased of government land in Louisa County during 1855 , and was an established merchant in the town of Wapello by 1856 .
 Ambrose, Louisa, Wapello
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ambrose, Louisa, Wapello