Question: Who was the author that wrote the nursery rhyme that has the Round Folk Song Index number of 7622?
Sentence (from "Liberia; or, Mr. Peyton's Experiments"): Liberia; or, Mr. Peyton's Experiments is an 1853 novel by Sarah Josepha Hale, the author of the nursery rhyme "Mary Had a Little Lamb", who wrote the novel under the name of Sara J. Hale.
Relevant evidence: Yes