I received this in the mail, to my delight. The sender says it is by Thomas Devkker, 1570?-1641?. Can anyone tell me more about the author of these evocative words?

Golden slumbers kiss your eyes,
Smiles awake you when you rise.
Sleep, pretty wantons, do not cry,
And I will sing a lullaby.
Rock them, rock them, lullaby.

Care is heavy, therefore sleep you,
You are care, and care must keep you.
Sleep, pretty wantons, do not cry,
And I will sing a lullaby.
Rock them, rock them, lullaby.