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Duhart 's performance that season earned his varsity letter in 1942 , before entering the U.S. Army in 1943 .
 Duhart, U.S. Army
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Duhart, U.S. Army