The picture above is from the photograph of Officers, December 1918. He is the only individual in an US Army uniform.
From G. K. Rose, The Story of the 2/4th Oxfordshire and Buckinghamshire Light Infantry.
Listed among the officers of the 2/4th Oxfordshire and Buckinghamshire Light Infantry at Armistice is Lieutenant E. P. Neary (U.S.), Medical Officer.
I’ve found the following paperwork from www.ancestry.com.
1 Lieutenant MC 20 March 1918 from Officers’ Reserve Corps; Captain 17 Feb 1919. MC to Discharge Washington DC; American Expeditionary Forces Somme Offensive; Defensive Sector. American Expeditionary Forces 24 Apr 1918 to 2 June 1919. Honorable discharge.
WWII Registration Card:
I would love to learn more about Lieutenant Neary’s service record during WW1.