I have just been looking at this book
At the very end is an index of the organisations that were set up and the people who helped out on the Western Front during WW1.
The vast amount of help sent - and I am certain this is but one small section - really brings it home to us exactly why the First World War was the subject of so many poems, diaries, stories, memoirs, novels and so on.
The book is well worth a look.
We will remember them all.