Frances Jenkins Olcott was a pioneering figure in the field of children's librarianship, best known for her role as the first head librarian of the children's department at the Carnegie Library of Pittsburgh, a position she assumed in 1898. Her innovative approach to children's literature and library services laid the groundwork for modern practices in youth librarianship. Olcott was dedicated to promoting literacy and a love of reading among children, and she authored numerous children's books that reflected her commitment to education and storytelling. In addition to her work as a librarian, Olcott contributed significantly to the professional literature on library services for children and youth. Her writings not only provided guidance for librarians but also emphasized the importance of creating engaging and accessible library environments for young readers. Through her efforts, Olcott helped to elevate the status of children's librarianship and inspired future generations of librarians to prioritize the needs and interests of children in their collections and programming. Her legacy endures in the ongoing evolution of library services aimed at young audiences.