A “Thank You” letter from Laura Ingalls Wilder to a third grade teacher, “Miss Dunning”, 1947-02-15, Container: Laura Ingalls Wilder - Box 1, Folder: 1. Libraries, RG-LIBRARIES. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/32225 Accessed March 25, 2026.