Need help researching my Grandfather

Im working on rebuilding his uniform, so that on veterans Day I can do a living history thing and share his story and teach others about the war, I also have the Class B shirts, Garrison caps, dress shoes. And i have a full winter and summer class a as well as a ike jaket

 

New update, I was doing some off habded reseach today and with the peices I know found out he was apart of the 49th Field Artillery Batallion, no idea what Company yet or medals but thats pretty big.

 

https://www.nps.gov/aleu/learn/photosmultimedia/upload/History-50th.pdf I 100% know this as this 7th ID unit now, I just need to put together the little peices as well as try to find his decorations as well as his mentions of Fort Leonard Wood. Im getting so close. Alot of the stuff in that document matches what my mom told me about his time and what I found out on my own (As well as you all)