I am seeking information of my husband's great-grandfather Alfred Firmin Vadorin b. 1872. He served in the French Army during WWI and the information I found was that he was a Soldat au 37e rég. I am attaching a picture of him in uniform dated July 1919. Any information on him, his regiment, his rank, etc would be welcome.
His collar insignia looks like either "Military Colleges, Military Police Officers" or "Artillery Staff". I cannot make out the insignia on his kepi but would presume it is the same. Was he an officer? I don't see any rank markings. At the time this picture was taken he would have been 42 years old.
Thank you, Debbie