Here are the responses I received for songs about fairytales. Thank you for the suggestions!!
Michael Finnigan, Ed Childs
Sweet Betsy From Pike (2-part), Ed Childs
Pick a Bale of Cotton (2-part), Ed Childs
An Old Song (SSA), Ed Childs
Mark Foster Music
Little Miss Muffett by Hal Hopson (in the style of Handel)
Martin Wesley-Smith's cautionary tale Who Killed Cock-Robin
Nick Page's Nursery Rhyme Cantata (2 responses)
THREE CELTIC FOLKSONGS (published separately-Boosey and Hawkes) by Wayland Rogers
The Reluctant Dragon, John Rutter
Path to the Moon by Eric Thiman. It's not specifically about fairytales, but it has that quality.
Kendall V. Bridges
ACMS Vocal Music