My Grandfather was in the 5th Field Company Royal Engineers during WW1. I have done a lot of research on his field company., it helps that the RE research library is not too far away.
the 11th November 1914 is a famous day for the 5th Field Company Royal Engineers
The Race to the Sea, the first battle of Polygon Wood, Lieutenant Renny-Tailyour, Lieutenant AE Collins, The Battle for Nonne Boschen. I have the war diaries for the 5th Field company and will look up you relation if you are interested.
Robert