↑ 1.01.11.2Ancestry.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: Union Prairie, Allamakee, Iowa; Roll: T625_476; Page: 1A; Enumeration District: 18; Image: 1178.
Name: Bert C Grimm Birth Date: abt 1879 Birth Place: Iowa Residence Date: 1920 Residence Place: Union Prairie, Allamakee, Iowa
↑ 2.02.12.2Ancestry.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: Union Prairie, Allamakee, Iowa; Roll: 640; Page: 6B; Enumeration District: 23; Image: 1138.0.
Name: Bert C Grimm Birth Date: abt 1879 Birth Place: Iowa Residence Date: 1930 Residence Place: Union Prairie, Allamakee, Iowa
↑ 3.03.13.2Ancestry.com. World War I Draft Registration Cards, 1917-1918. (Online publication - Provo, UT, USA: The Generations Network, Inc., 2005.Original data - United States, Selective Service System. World War I Selective Service System Draft Registration Cards, 1917-1918. Washington, D.C.: National Archives and Records Admi) Registration Location: Allamakee County, Iowa; Roll: 1642847; Draft Board: 0.
Name: Bert Charles Grimm Birth Date: 19 Apr 1878 Birth Place: Residence Date: Residence Place: Not Stated, Allamakee, Iowa
Ancestry.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: Union, Allamakee, Iowa; Roll: T624_390; Page: 3A; Enumeration District: 17; Image: 969.