Letter from Laura Ingalls Wilder to the Fourth Grade Class of Stone School (Saginaw, MI), 1947-03-17, Container: Laura Ingalls Wilder - Box 1, Folder: 1. Libraries, RG-LIBRARIES. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/32229 Accessed March 25, 2026.