Box 39 = yes
Box 41 = W
Box 42 = either a 1 or an I.
He's listed on the census for Africa, Spalding, Georgia, ED# 126-18 page 12 of 20. His name was transcribed as "Les G. Roberson". I tried to edit the names, but the incorrect still shows up without my corrections.
I just sent an email to the History Office of the GA National Guard. Hopefully, they'll be able to tell me something.