That is her son.Maybe they had to film that day, not Billy though. I don't know what happened to him.
Okay I found some guy's video from the ceremony.
On YouTube
Who is the guy at 2:02 who kisses Marg's cheek? Kind of blondish hair? And I have to say, Jon (Henry) looks adorable in those glasses LOL. And I love Eric's smile. He's got such a great smile.
That's who I thought it was, but I wasn't sure. Last time I saw a pic of him he was much younger LOL.