BTAA-GIN Blog

 By Cecilia Smith. Chicago Ethnic Group Shapefiles 1868-1940 What are the items? These shapefiles show generalized majority ethnic groups in areas across Chicago from 1868, 1884, 1898, 1910, 1920, 1930, and 1940. The map and historical information presented here include materials reflecting the attitudes, language, and stereotypes of an earlier time period. These materials are presented as historical resources in support of study and research. Inclusion of such materials does not constitute an endorsement of their content by the BTAA Geoportal or the University of Chicago. What BTAA Library submitted the item? University of Chicago Interesting tidbits: The data was derived from a 1948 doctoral dissertation titled “The effects of subsidy of Presbyterian Churches" by Henry Hughes Presler. Presler’s dissertation explored the relationship of Presbyterian churches to ethnic groups in Chicago and contains 10 maps. Where can I find out more? Presler’s dissertation can be found at Mansue

 By Jaime Martindale. In recent years, the University of Wisconsin-Madison has made improving access to LiDAR and aerial imagery a priority in the B1G Geoportal. Building on the popularity of the historic 1937-1941 aerial photos of Wisconsin , (one of the most popular resources in the B1G Geoportal for several years running) our current focus has been on enhancing discovery to more current aerial imagery and LiDAR elevation data currently housed within the WisconsinView repository. WisconsinView.org (part of the University of Wisconsin-Madison’s Space Science and Engineering Center) serves as the repository for remotely sensed data in Wisconsin -- from LiDAR and satellite imagery, to digital orthophotography, tornado and flood data. In partnership with WisconsinView, the UW Robinson Map Library and WI State Cartographer’s Office are working to write metadata and facilitate access to these collections via the B1G Geoportal. This work results in greater exposure to the data and imagery

 By Cecilia Smith. Seventy five local communities in Chicago, distribution of Committee of Fifteen cases for 1930 What is the item? This is a map of “vice resorts” in Chicago, or places where prostitution took place during the year 1930. These areas were identified by the Chicago Committee of the Fifteen, which formed in 1908 to fight “vices” in the city. Major subjects of their investigations were pandering, prostitution, crime, homosexual sex, and interracial relationships. The locations are overlaid on the 75 community areas that existed at the time. It was originally published in Walter Reckless’ Vice in Chicago (1933). The map and historical information presented here include materials reflecting the attitudes, language, and stereotypes of an earlier time period. These materials are presented as historical resources in support of study and research. Inclusion of such materials does not constitute an endorsement of their content by the BTAA Geoportal or the University of Chicago.