Good question. Do you have a copy of them in front of you? Do they have authors? Most times if something is over fifty years old it moves to public domain. This, of course was with writings and art that was created some time ago (i.e. 100 years, the 1800's and earlier). For example Dickens' work is all in public domain. Quite likely these two fairy tales are as old as that or even older.
My guess is that they don't have an author listed (I'm reasonably sure they don't belong to Aesop or the Brother's Grimm) and they were created in the 1800's or earlier.
This may not apply to works in the 1900s as copyright laws have changed and can be willed to relatives.
Faye