Abstract
Caroline M. Hewins, 1846-1926, is the most prominent librarian in the American Librarianship. At Hartford, Connecticut, she devoted her life to forming the public library work with both adults and children just about for a half a century. This article aims specially to trace her work with children, because she should be considered to be a real pioneer in the library work with children and it is she that shaped an original framekwork of children's librarianship in theory and practice.