Learn how to use the library's resources to research your family history.
Ancestry: Library Edition and HeritageQuest Online are free Digital Library sites, available 24/7 with your Prince William Public Libraries library card.
The second library to be built in Prince William County, the Bull Run Library features a 24-hour book drop, 125-seat Community Room, a Quiet Study Room and a Children’s and Young Adult area, 24 public access computers, and free Wi-Fi.