02-23-2018, 11:51 PM 
		
	
	
	I think the numbers after job titles are the MOS (military occupation specialty) numbers.  Honestly, each individual was reduced to his MOS and was assigned just like parts in a supply chain.
	Not sure about the self-propelled 90mm;  Try googling it...or try the Fort Sill web site and history.  Sill was a major  AAA training camp during the war.  My Father did basic there before being shipped to an CA battery overlooking Seattle.
	theron
	 
	 

 
 

