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- [S7] 1910 United States Federal Census, Ancestry.com, (Name: Online publication - Provo, UT, USA: Ancestry.com Operations Inc, 2006.Original data - Thirteenth Census of the United States, 1910 (NARA microfilm publication T624, 1,178 rolls). Records of the Bureau of the Census, Record Group 29. National Archives, Was;), Year: 1910; Census Place: Caldwell, Sumner, Kansas; Roll: T624_458; Page: 6B; Enumeration District: 0151; FHL microfilm: 1374471.
- [S1] 1920 United States Federal Census, Ancestry.com, (Name: Online publication - Provo, UT, USA: Ancestry.com Operations Inc, 2010. Images reproduced by FamilySearch.Original data - Fourteenth Census of the United States, 1920. (NARA microfilm publication T625, 2076 rolls). Records of the Bureau of the Census, Reco;), Year: 1920; Census Place: Amaqua, Boone, Iowa; Roll: T625_479; Page: 1A; Enumeration District: 1; Image: 9.
- [S2] 1930 United States Federal Census, Ancestry.com, (Name: Online publication - Provo, UT, USA: Ancestry.com Operations 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, ;), Year: 1930; Census Place: Amaqua, Boone, Iowa; Roll: 643; Page: 1B; Enumeration District: 0002; Image: 479.0; FHL microfilm: 2340378.
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