The Millbrook Society is a nonprofit historic preservation organization in Hatboro. The Society promotes historical education through presentations, research, reenacting and archaeology, with a primary focus on the local history of Bucks and eastern Montgomery Counties. The Society meets weekly at the Hatboro Baptist Church on North York Road, where the Society also operates the Amy B. Yerkes museum of local history.
The Society's mailing address is: P.O. Box 506, Hatboro, PA 19040.