6287
His narrative of these travels , which he wrote in 1842 at the age of 80 , is a first-hand account of the early settlement of the Midwest .
 organization: Midwest
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Midwest