The staff at the McHenry County Historical Society fields an average of 10 to 15 requests each day on property, building and site preservation, family history, business history and object conservation. The Society’s local history research library contains photographs; picture post cards; maps; journals; business, club, school and governmental records; standard local history books; biographical files; scrapbooks; newspapers and other documentary materials such as old phone directories and high school yearbooks which provide the answers to all sorts of questions.

In addition, technical books and pamphlets on everything from quilt repair to building restoration plus staff training in conservation, restoration and preservation, provide an invaluable one-stop resource for businesses, public groups and individuals.