10622/DRXWLN Stapel, Rombert0000-0001-6394-260X(International Institute of Social History) IISH Data Collection 2020 Historical GIS polygons (convex hulls) for the areas and administrative units mentioned in The American Gazetteer by Jedidiah Morse (Boston 1797). The dataset was specifically created for use with the text, but draws on resources of the NHGIS and HGIS de las Indias. Stapel, Rombert(International Institute of Social History)