Established in 1951 with a goal of "preserving the past for the future," the Washington County Historical Society is based at Fayetteville, Arkansas, and publishes a quarterly historical journal called Flashback that is available to members.
The society's offices are in Headquarters House at 118 E. Dickson. Although the society gathered historical items related to the history of Washington County for many years, most of its archives and photo collections have been donated to the Department of Special Collections at the University of Arkansas Libraries and to the Shiloh Museum of Ozark History.
Annual events sponsored by the society include a commemoration of the Battle of Fayetteville in April, and an ice cream social in August to raise funds for the society's operations. Aside from Headquarters House, the society also owns the Archibald Yell law office, which was moved to the grounds of Headquarters House, and the Ridge House at 230 W. Center.
Membership is available in the society through annual dues. A form is available at the society's website.