In this article, we propose a model to identify the spatial and structural characteristics of a specific type of social networks: the family. The model is the third (Giordano & Cole, 2018, 2019-and the most fully realized-in a series we have developed in the last four years as part of our work on the topic of platial GIS, or the GIS of place. The model is both a visualization of a spatial social network and an analytical tool and it is also replicable and adaptable to projects in which the dataset Dunder study includes temporal and spatial information as well as demographic data. The case study we discuss in this article concerns the immediate post-Holocaust period in Budapest: in the summer of 1945, the Hungarian Section of the World Jewish Congress-American Joint Distribution Committee and the Jewish Agency for Palestine Statistical and Search Department (World Jewish Congress in brief) commissioned a door-to-door survey to determine where Jewish survivors were living in the city, which at the time was the largest single urban concentration of Jews in post-war Europe. The information collected in the survey

Holocaust and genocide scholars have long recognized the family as a relevant, if neglected, topic of research. In this article, we examine the spatio-temporal patterns of Jewish arrests during the Holocaust in Italy, concentrating on family patterns and building on previous work on arrest patterns for individuals. Starting from a large historical GIS of individual victims, we devised a methodology to identify family groups and determine if and when family members were arrested together, thereby achieving the objective of studying the event from multiple resolutions and scales of analysis. Results show considerable differences in spatio-temporal patterns for families and individuals, suggesting a higher vulnerability of families to round-ups and marked differences as concerns the nationality of both perpetrators and victims. In addition to contributing to the geography of the Holocaust, the conceptual model we devised for this study can be used in other contexts where the family is the object of research.

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En mobilisant des sources administratives uniques produites par un commissariat de quartier parisien, l’approche spatiale située au cœur de cet article, avec l’utilisation des SIG, vise à questionner les interactions entre espace urbain et persécutions antijuives. Nous analysons tout d’abord la réalité de la présence juive à l’automne 1940 dans les quartiers Arts-et-Métiers et Enfants-Rouges, où les juifs sont nombreux sans être majoritaires ni particulièrement concentrés. Nous étudions ensuite les variations de l’intensité des arrestations, ainsi que des tentatives de fuite, au sein des quartiers étudiés. Nous montrons enfin que les immeubles avec un grand nombre de foyers juifs ont été proportionnellement plus affectés par les arrestations que les autres. Les changements d’échelle proposés dans le présent article permettent ainsi d’élaborer de nouvelles hypothèses concernant les disparités de déportations et de survie.