Hello Steve
Just a couple of questions about Edward Edwards. Do you know if he served in Gallipoli with the 4th? Do you know his army number? If so you can check his medal record on Ancestry and that will show if he went to Gallipoli.
That may help to narrow it down. I am away for a couple of days now, but I will get back to you.
I also plan to go to NA next week (crazy I know but a cousin is over from Ireland who wants to do research!) so I will order the 4th diary for their time in France and will look up the date of his death to see if he is mentioned there.
Best wishes
Anne