The Walter Havighurst Special Collections Library at Miami University in Oxford, Ohio, houses rare, unique, and valuable books, manuscripts and other research materials. Vertical File Collection , a collection of rare materials ranging from original letters, photographs, articles, poems, documents and other ephemera. Some of which may not have date of publication, names of authors or names of publishers. William Holmes McGuffey schoolbooks , a collection of 336 Readers ranging from Primer to Word List.
Some readers lack title page, date of publication, or publishers.
A catalog of the readers can be searched by year of publication and reader level . Acquisitions are funded through gifts and donations.