I think Dorothy Loudon knew and was able to use all the comedic tricks that vaudeville performers used. It's a talent that is missing in today's crop of performers. Not to say that she was just a comedienne because she could also break your heart like she did in Ballroom.
"More thankless than Lily St. Regis????"
Lily got on the Tony Awards along with Daddy, Annie, Sandy and the orphans. No Grace in sight.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.