More of the life of  Frederick Rowntree 

It showed be noted here that Frederick Rowntree, the father of Colin and Douglas and father-in-law of Ralph Thorp was involved in the war, in so far as he offered his services with the production of camps for the Belgian refugees in Holland.

The story of the Rowntree Family in WW1 is included in:
An Introduction to the Rowntree Family   One Branch in the First World War Era

particularly in the section The War Years