Biographical and genealogical material on the Baum and Gage families; material relating to the publishing history as well as the film and theatrical adaptations of The Wizard of Oz, including correspondence, manuscripts, reviews, publicity, and publications about Baum and Oz; photographs; and Oz memorabilia. Also, material pertaining to Russell P. MacFall and William W. Denslow.

The correspondence, memorabilia, and writings of journalist and diplomat Nicholas Roosevelt

Genealogical and personal information on the Noyes family, founders of the Oneida Community; historical material concerning the Oneida Community and its commercial offspring, Oneida Community Ltd, manufacturer of silverware and china (among other things); and Noyes' correspondence with family and business associates.