This map is based on a survey of Russian Jewish families in 1943. The original document is located in the archives at NARA [RG263 SMP U239 1943], although we used the copy available at the Hoover Archives in the collections of the Sino-Judaic Institute. The document is cryptically entitled "List of Jewish families to be visited". For more information, see the link below or Map ID544 in e-Atlas.