My grandfather James Madison Pearson is the officer seated center front row. To his right and left are a captain and lieutenant. Staff Sergeants flank the two officers.
My grandfather saw action at Chateau-Thierry, the Meuse-Argonne, Champagne, Aisne, and Verdun, as well as the Defensive Sector.
I have no other information about the photograph. Perhaps someone out there knows more or recognizes other soldiers. If so, please post a comment.