I am trying to find out which Infantry he was in and where he served in France. From Sept 1917 to Nov 1917 he was in the 153 Brigade, then from Nov to March 1918 he moved to the 157 Dep Brigade. From March 1918 to Feb 19, he was in Company A, 307 Sup Tn. He was overseas from June 1918 to May 1919. When he came back from overseas he was in Camp Upton and Camp Mills. He signed up in Buffalo, NY. I don't know what abbreivations stand for. I would appreciate any information.