Board Thread:Spoilers!/@comment-6175354-20141026143221

The Snow Queen's Storybrooke alias is Sarah Fisher, while her real name appears to be Ingrid. OUaT is imfamous for carefully choosing character names, if they are not given the "Disney name". The names always reference, something about the character's story.

The St. Vincent and Sarah Fisher Center in Detriot, started out as a school for orphaned children. Ingrid Emond published, a retelling of Hans Christian Andersen's The Ugly Ducking. While never of these reference The Snow Queen, they do seem to fit into Emma's backstory.  