Don Lafreniere (SS), Dan Trepal (IHA PhD candidate-SS), Sarah Fayen Scarlett (SS), John Arnold (SS), Robert Pastel (CS), and Ryan Williams (GRF), along with Luke Weidner (Colorado School of Mines) recently published “Public participatory historical GIS” in Historical Methods: A Journal of Quantitative and Interdisciplinary History. In this article the authors call for a new approach to historical geographic information system (HGIS) study that includes public partnership to build HGIS datasets.