Sellersville is the town that developed next to West Rockhill. The history of the town of Sellersville and West Rockhill is intertwined. Sellersville relied on West Rockhill for resources (such as water) and Sellersville served as a trade link to other communities for West Rockhill. As Sellersville developed and grew, the residents of West Rockhill could find a variety of stores and other businesses in Sellersville. Transportation in the form of trolley and train lines also bridged the communities.