Sorry that was a typo. He served from Aug 27,1918-July 28, 1919. I've sent in request at NARA numerous times. The only thing they ever found was his final pay voucher which is useless except for his service number. I actually did get some of his records from the Illinois State Archives. But just my luck they as well were in a fire so half of the papers are burnt. I do know he was discharged from Prisoner of War Escort Company 214. But like i said his collar disks lead me to believe he was in the 4th Infantry Regiment before he got transfered. I'm just trying to find something in writing stating he served with the 4th. Thanks for your help.