Don't know where you can find all the lyrics, but there's this, which ties into "derby:"

Where did you get that hat?
Where did you get that tile?
Isn't it the knobby one,
In just the proper style.
I should like to have one,
Just the same as that.
Where'ere I go, they shout, "Hello!
Where did you get that hat?"

From Bob Carlin's singing. I don't know that I ever got all the words, but think I must have. However, I can't access my home PC from work, so...

Bob