Hi Spades, The ancestor's name is James Forrest, but I think appears in the cenotaph base as James William Forrest and some other piece of paper we have had James Willliam Forrest, so I am trying to make it fit! In the photo he is the "Hitler"-moustached one - seated second from the right - the other chap looking somewhat like his twin. In the Cenotaph information it gives nominal roll numbers of 88 and 4 but whether that is of any use. I see that the personnel file is restricted access. 42nd Reinforcements A company - whether that means much again - but no doubt there will be information on that company.
Regards.
Max.