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Online publication - Ancestry.com. 1920 United States Federal Census [database on-line]. Provo, UT, USA: The Generations Network, Inc., 2005. For details on the contents of the film numbers, visit the following NARA web page: <a href="http://www.archives.gov/publications/microfilm-catalogs/census/1920/part-07.html">NARA</a>. Note: Enumeration Districts 819-839 on roll 323 (Chicago City.Original data - United States of America, Bureau of the Census. Fourteenth Census of the United States, 1920. Washington, D.C.: National Archives and Records Administration, 1920.T625, 2,076 rolls. Balboa, Civilians In Canal Zone, Panama Canal Zone, ED , roll , page , image 23.

Online publication - Ancestry.com. 1930 United States Federal Census [database on-line]. Provo, UT, USA: The Generations Network, Inc., 2002.Original data - United States of America, Bureau of the Census. Fifteenth Census of the United States, 1930. Washington, D.C.: National Archives and Records Administration, 1930.T626, 2,667 rolls. Balboa, Balboa District, Panama Canal Zone, ED 4, roll 2638, page , image 93.0.