Hush up, baby, don't say a word,
Papa's going to buy you a mocking bird.
If it can't whistle, and it can't sing.
Papa's going to buy you a diamond ring.
If that diamond ring turns to brass,
Papa's going to buy you a looking glass.
If that looking glass gets broke,
Papa's going to buy you a Billy goat.
If that Bily goat runs away
Papa's going to buy you another today.
Singing Together, Summer 1951, BBC Publications
From "Twelve Songs for Children (English Folk Songs from the Southern Appalachians)". Maud Karpeles and the Oxford Univeristy Press.
(Search Roud index at VWML)