Home Owners' Loan Corporation. Metropolitan Chicago, IL Security Map : No. 1 Map Section: Chicago, Illinois, Records of the Federal Home Loan Bank Board : Home Owners Loan Corporation, Record Group 195. United States. National Archives and Records Administration. https://fraser.stlouisfed.org/archival/6751/item/620355/content/pdf/map_ChicagoIL_1, accessed on December 5, 2022.
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