The Imperial War Museum is lucky. Wish I could attract a volunteer for here to do such a thing. I will do it myself at some point. Some of the work is done; Absent voters' list and casualty list.
Of course the problem area is those men not on either of the above which I estimate to be about 1,100 names, larger that the above two groups combined. Some may be mentioned in the newspapers, others in surviving service papers.
Regarding service papers, way back before there was anything online I used to pay a researcher to search for papers at the National Archives. £10 a pop. I seemed to get a percentage of Engineer and Artillery papers but Northumberland fusiliers? they always failed. When I asked the researcher why he said there are significantly fewer of N. Fusilier papers surviving compared to some of the Corps for some reason. I guess during the Arnside Street fire they were together and closer to the epicentre unfortunately.
Have a look
at this page on the 'Long Long Trail' website to see just part of what was destroyed. It brings a lump to my throat and a tear to my eye to read that list.