↑ 1.01.11.2Ancestry.com. 1910 United States Federal Census. (Online publication - Provo, UT, USA: The Generations Network, Inc., 2006. For details on the contents of the film numbers, visit the following NARA web page: NARA.Original data - United States of America, Bureau of the Census. Thirteenth Census of the Unit) Year: 1910; Census Place: Ambrose, Divide, North Dakota; Roll: T624_1140; Page: 1B; Enumeration District: 213; Image: 354.
↑ 2.02.12.22.32.4Ancestry.com. 1930 United States Federal Census. (Online publication - 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) Year: 1930; Census Place: Ambrose, Divide, North Dakota; Roll: 1734; Page: 2A; Enumeration District: 3; Image: 367.0.
↑Ancestry Family Trees (1). (Online publication - Provo, UT, USA: The Generations Network. Original data: Family Tree files submitted by Ancestry members.) Cited in the family tree "Robert O'Connor Family Tree" created by "robertoconnor125".
↑Ancestry.com. 1920 United States Federal Census. (Online publication - Provo, UT, USA: The Generations Network, Inc., 2005. For details on the contents of the film numbers, visit the following NARA web page: NARA. Note: Enumeration Districts 819-839 on roll 323 (Chicago City.Original data - United States) Year: 1920; Census Place: Ambrose, Divide, North Dakota; Roll: T625_1331; Page: 6A; Enumeration District: 43; Image: 1017.
Birth date: abt 1878Birth place: North DakotaResidence date: 1920Residence place: Ambrose, Divide, North Dakota