
Various theories exist to explain the origins of the rhyme.
One identifies it as the first poem written on American soil, suggesting it may date from the 17th century and have been written by an English immigrant who observed the way native-American women rocked their babies in birch-bark cradles, which were suspended from the branches of trees, allowing the wind to rock the baby to sleep. A difficulty with this theory is that the words appeared in print first in England in c. 1765.
In Derbyshire, England, local legend has it that the song relates to a local character in the late 18th century, Betty Kenny (Kate Kenyon), who lived with her charcoal-burner husband, Luke, and their eight children in a huge yew tree in Shining Cliff Woods in the Derwent Valley, where a hollowed-out bough served as a cradle. However this "late 1700s" date is incompatible with the poem's appearance in print c. 1765.
Yet another theory has it that the lyrics, like the tune "Lilliburlero" it is sung to, refer to events immediately preceding the Glorious Revolution. The baby is supposed to be the son of James VII and II, who was widely believed to be someone else's child smuggled into the birthing room in order to provide a Roman Catholic heir for James. The "wind" may be that Protestant "wind" or force "blowing" or coming from the Netherlands bringing James' nephew and son-in-law, William III of England, a.k.a. William of Orange, who would eventually depose King James II in the revolution (the same "Protestant Wind" that had saved England from the Spanish Armada a century earlier). The "cradle" is the royal House of Stuart. The earliest recorded version of the words in print appeared with a footnote, "This may serve as a warning to the Proud and Ambitious, who climb so high that they generally fall at last", which may be read as supporting a satirical meaning. It would help to substantiate the suggestion of a specific political application for the words however if they and the 'Lilliburlero' tune could be shown to have been always associated.
The first printed version from Mother Goose's Melody (London, c. 1765), has the following lyrics:
Hush-a-by baby, on the tree top
When the wind blows, the cradle will rock
When the bough breaks, the cradle will fall
And down will fall baby, cradle and all.
The most common version used today is:
Rock-a-bye baby, on the treetops
When the wind blows, the cradle will rock
When the bough breaks, the cradle will fall
And down will come baby, cradle and all.
(source: Wikipedia)

Rock-A-Bye Baby (PDF) |

009_rock-a-bye_baby.mid |