The Office of Strategic Services (OSS), the precursor to the Central Intelligence Agency, produced a number of maps during World War II. The WIU Libraries' map collection has three maps of areas in South America produced by the OSS. All of them show the distribution of Japanese in South American countries. The map of Cali also shows the locations of German estates.
Office of Strategic Services. 1943. Sketch map of Japanese colonies in the vicinity of Cali, Colombia (Provisional ed.). [Washington, D.C.]: OSS [Office of Strategic Services] Repro. Section. Map Collection MAP. G5294.C2E1 1943 .O44
Office of Strategic Services. 1943. Peru: Distribution of Japanese, 1940 (Provisional ed.). [Washington?]: OSS [Office of Strategic Services] Repro. Section. Map Collection MAP. G5311.E25 1943 .O34
Office of Strategic Services. 1943. Japanese in São Paulo State Brazil (Provisional ed.). [Washington, D.C.]: Reproduction Section, OSS [Office of Strategic Services]. Map Collection MAP. G5606.E1 1943 .O44