JES, I didn't find John Walton's name on the MOH list. I think that you may have mistakenly keyed on John Walton Collier, who was awarded the MOH posthumously for Korean War service.
When John Walton passed away, I remember reading about him serving nobly in Vietnam (as a medic?), but I don't remember heroic citations attached to him.
To teach my kids the meaning of Memorial Day, we go to Fort Rosecrans on that day and read the citations posted on select MOH recipients. Sad but edifying.
