Question: When did the ingalls move to walnut grove?
Disambiguated questions and answers: question: When which novel did the ingalls move to walnut grove?
In what year was the novel published that the ingalls family moved to walnut grove?
What year in the story did the ingalls first move to walnut grove?
What year in the story did the ingalls move back to walnut grove?
answer: On the Banks of Plum Creek
1937
1874
1877
Natural Questions answer: dispute with the railroads (from the Wikipedia article "Winoka")