Cite
LaDale Winling, Nathan Connolly, Richard Marciano, Robert K. Nelson. (n.d.). Polygons and area descriptions of Home Owners' Loan Corporation [New Castle, Pennsylvania] {1937}. American Panorama. https://dsl.richmond.edu/panorama/redlining/#city=new-castle-pa (dataset)
Available from: https://geo.btaa.org/catalog/6cd58172-a152-4b56-a34b-e62bc8b6c332