Letter from Laura Ingalls Wilder to “Children of Chicago,” Apologizing for being unable to make a personal appearance at a program, 1947-02, Container: Laura Ingalls Wilder - Box 1, Folder: 1. Libraries, RG-LIBRARIES. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/32224 Accessed March 25, 2026.