Ian Gregory is Professor of Digital Humanities at Lancaster University, UK. He has worked extensively on using GIS in the Humanities on topics ranging from nineteenth-century infant mortality to Lake District literature. He has published four books and numerous journal articles on the subject. He co-directs Lancaster’s Digital Humanities Hub (http://wp.lancs.ac.uk/dighum). Don DeBats, Head of American Studies at Flinders University, Australia, is also a visiting professor at the University of Virginia, and a Residential Fellow at the Virginia Foundation for the Humanities. His current research on individual level voting by whites and African-Americans in Kentucky from 1870 to the adoption of the Australian secret ballot in 1891 is supported by the Division of Research Programs of the National Endowment for the Humanities. His interactive data-driven website is: sociallogic.iath.virginia.edu Don Lafreniere is Assistant Professor of Geography and GIS and Director of the Geospatial Research Facility at Michigan Technological University, USA. His research interests centre on creating GIS methodologies for recreating historical environments and spatializing populations. His recent work includes creating historical spatial data infrastructures for heritage preservation and education and using historical geospatial methods for uncovering the relationships between the built environment and life course health and wellbeing.