A gathering place for the Butler and Indianapolis communities, the Reilly Room was the centerpiece of the 1992 expansion of Atherton Union. The room is home to many campus events, including the Visiting Writers Series, and campus and community forums. The Union expansion was made possible by a gift from Reilly Industries, and the Reilly Room was named to honor the Reilly family and its three family members—P.C. Reilly, Peter Reilly, and Tom Reilly Jr.—who have served as University Trustees.