Posted 29 January 2012 - 07:37 PM
Welcome to the Forum Ron (is it Ron?)
The ground gained was in the first few days of the 1st Battle of the Scarpe, the 2nd and 3rd were to follow and they made little or no ground and resulted in very large casualty lists, many of whom were never found - thus the Arras Memorial. By the time areas around Cherisy, Oppy, Roeux, and so on could be cleared the Germans had retaken the ground in 1918 and had it taken back by the British and Commonwealth a few months later. Nothing would have been left of what lay there in 1917.
If you let me know the names of your relatives I might be able to shed light on what happened to them.