Ray's unit performing exercises

This is Ray Baer's actual unit the 331st MG Bn and it is very likely he is among these trainees somewhere.

"View of soldiers from the 331st Machine Gun Battalion performing exercises at Camp Grant in Rockford, Illinois"
Records of the War Department General and Special Staffs - Panoramic Views of Army Units, Camps, and Related Industrial Sites (165-PP-69-9)

National Archives and Records Administration