anyone ?

The tune was referenced in an earlier episode, in which Penny had to nurse a
sick Sheldon. That was the first time I ever heard it.

Yes, I saw that episode too. I googled it and only found Author Unknown.

To date; SK was sung in THREE episodes.

Yes, I saw that episode too. I googled it and only found Author Unknown.
I don't know who wrote this song but a woman named Patsy Biscoe recorded it on an album called "50 Favorite Nursery Rhymes, Volume 3".

Never heard it before either. I loved it when Penny tried singing it to Sheldon when he was sad...:lol: THAT song is for when I am sick not sad. He is just a nut:D