WolfAhh, where are you going?
Red Riding HoodTo Grandmas!
WolfWho are you?
WolfSome grandma; what beautiful eyes you have.
Red Riding Hood, Grandma, PreacherAnd that is the story of Little Red Riding Hood.
This work is in the public domain in the United States because it was legally published within the United States (or the United Nations Headquarters in New York subject to Section 7 of the United States Headquarters Agreement) before 1964, and copyright was not renewed.
Works published in 1931 would have had to renew their copyright in either 1958 or 1959, i.e. at least 27 years after it was first published / registered but not later than 31 December in the 28th year. As it was not renewed, it entered the public domain on 1 January 1960.