Hello Judy,
The men are wearing what was known as Hospital blues. These were jacket and trousers in a light blue cloth and the jacket had a white lining (as can be seen on some of the lapels). A white shirt and red tie finished the outfit off. Soldiers would wear their own caps with regimental cap badges as per normal. Within this group you have members from the R.A., R.E (I think), Fusiliers, Light Infantry, Manchesters, and a couple of Scots wearing their Tam's.
old rowley