A troop of mounted soldiers, their backs to the camera, parading down an unidentified street. This photo could date from WW1 or the Territorial Army camps held in the district in the years before the war.
Half-length studio portrait of a private with 'RE' on his shoulder denoting Royal Engineers and four overseas service chevrons visible on his right sleeve.
Full-length studio portrait of a cavalryman (note spurs & bandolier) possibly in the Pembroke Yeomanry. Note that the scroll below the feathers on his cap badge extends beyond the feathers, unlike the similar badge of the Welsh Regiment where the scroll is the same length as the three feathers.
The Exploration Tywi website (www.dyfedarchaeology.org.uk/tywi/valleyatwar.html) refers to a diary kept by Sgt W O Stephens from Llandeilo who was awarded the Distinguished Conduct Medal in 1915 at the Battle of Loos. This portrait shows a medal ribbon on the sergeant's chest but it does not correspond with a DCM.
A full-length portrait of a soldier with an RGA (Royal Garrison Artillery) shoulder-strap title and a machine-gunner skill-at-arms badge on his sleeve. This is surmounted by a crown. This was later to become the emblem of the Machine Gun Corps.
A half-length portrait of an officer in dress uniform displaying the collar badges of the South Wales Borderers. Identified as Captain Alan Ralph Peel of Taliaris, killed in action at Kosseoa, Cameroon on Nov 17th 1914. See West Wales War Memorials project for confirmation.