Thanks for all your replies.
Ken, interesting what you say about his regimental no. being allocated to the 4th Batt NR. The medal rolls at the National Archive show the 9th Batt. Do you know, therefore, if this suggests he was initially in the 4th Batt but was with the 9th Batt by the time the war ended? I will try the Great War Forum as you suggest.
Cheers, Ian