A group from the 2nd Ersatz Battalion Landwehr Infantry Regiment 99. The postcard was sent from Kehl. The picture was taken across the river by Max Kämpf in Strasbourg.
Some members of Königlich Bayerisches 9. Infanterie-Regiment in the spring of 1916. Later that year they would find themselves in the Battle of the Somme.
A group of prisoners in France dressed for a play. The prisoner on the right has "PG" stenciled on his pant leg clearly marking him as a prisonnier de guerre.
In 1916 a small strap was added to the shoulder so the shoulder strap could be unbuttoned and folded back in order to hide the cipher or unit number. The soldier in the middle has cloth covers over his. Later in the war the straps were removed while on maneuvers.
The Plattsburgh Movement started in 1915. It was an effort by private citizens to prepare for the possible United States entry into the war. Camps were held to prepare volunteers for military service. Gaston was one of 1500 men in the camp in Plattsburgh during the summer of 1916.
The soldier standing at the window on the left is preparing to tap a keg. In 1915 the 11th Reserve Infantry Regiment held the sector of Malancourt wood, south of Montfaucon, in Argonne.
I don't know that these are from the same person. I did buy them at the same time from the same dealer so there is a chance they are. The signatures are not the same but there is three years of war between them.
Embossed lower left corner "U. A. Studios 79, Union St, Plymouth". Two battalions of the Somerset Light Infantry were raised in Plymouth during WWI. The 9th stayed in England and the 1st Garrison Battalion was sent to India.