380543
It was effective in combat and it housed half a dozen aces besides Putnam , including Karl Schoen , Robert Opie Lindsay , and future Brigadier General Harold H. George .
 Putnam, Karl Schoen, Robert Opie Lindsay, Harold H. George
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Putnam, Karl Schoen, Robert Opie Lindsay, Harold H. George