check your original sources and determine which of the brothers was KIA and which died in hospital, the profiles currently indicate conditions for both of the brothers.
for george, if he was killed in actoin, change line in bio section to killed in action. if he was the one who died in the hospital, remove the {{profile box...}} entry and add [[Category: Died in Military Service]] if all you want is the category entry, OR, add {{Died in Military Service}} to get category and black ribbon icon on profile page.
for william, if he died in hospital, change bio line to Died in hospital (or died in service) and leave the [[Category: Died in Military Service]] as is, OR, change it to {{Died in Military Service}} if he was the one who was KIA, remove the died in mmilitary service category, and add the profile box (easiest would be to cut and paste what is currently in george's profile, which would be wrong if william was the brother who was KIA)