The aboves grandson would dearly love to know the campaigns and theatres in which his grandfather fought or was stationed at or was attached to. If we could identify his unit(s) we could look at "The long long trail" but alas it might be that Wheeler Jacksons' records did not survive? One of his medals has his name and number preceded by the initials GR. (Attached) Can anyone advise on this? Can anyone assist please?