DuPage County Genealogical Society
Provides education for genealogists and assists in preserving and making available local records of genealogical interest.
DuPage County Historical Museum
Dedicated to the collection, preservation, and interpretation of material culture documenting DuPage County.
DuPage County Historical Society
Promotes and preserves the history of DuPage County through publications, lectures, and cooperation with other county historical organizations.
Wheaton Historic Commission
Promotes awareness of Wheaton's history and administers the Wheaton Register of Historic Places program.