| 1. |
Ancestry.com Operations, Inc., 1880 United States Federal Census, ED 35, Portage, Columbia, WI, page 6, dwelling 51, family 54, line 16, Grotzke, Albert; Database and images, Ancestry.com LLC, Ancestry.com : 2010 (http://www.Ancestry.com/ : accessed 10/06/2022); citing Tenth Census of the United States, 1880 U. S. Census, population schedules, National Archives and Records Administration Microfilm Publication T9 (1454 rolls), Records of the Bureau of the Census, Record Group 29, National Archives, Washington, DC, roll 1420, image 489 [Surety: 3]. |
| 2. |
Ancestry.com Operations, Inc., Newspapers.com Marriage Index, 1800s-1999, Miss Mary Rued; Database and images, Ancestry.com LLC, Ancestry.com : 2010 (http://www.Ancestry.com/ : accessed 07/14/2024); citing /Newspapers.com/, Portage Daily Register, Portage, WI, 10/03/1901, page 4, col 2, "Ruedi -- Grotzke" [Surety: 3]. |
| 3. |
Ancestry.com Operations, Inc., Newspapers.com Marriage Index, 1800s-1999, Mildred L Maquardt; Database and images, Ancestry.com LLC, Ancestry.com : 2010 (http://www.Ancestry.com/ : accessed 06/18/2021); citing /Newspapers.com/, Portage Daily Register, Portage, Wisconsin, 01/28/1919, page 3, col 3, Marriage Licenses [Surety: 3]. |
| 4. |
Ancestry.com Operations, Inc., Wisconsin Marriage Records, 1820-2004, Columbia County certificate 002124, Albert Grotzke and Bertha Bilke; Database and images, Ancestry.com LLC, Ancestry.com : 2022 (http://www.Ancestry.com/ : accessed 07/14/20224); citing Wisconsin Department of Health Services, Madison, Wisconsin [Surety: 3]. |
| 5. |
Ancestry.com Operations, Inc., 1930 United States Federal Census, ED 14-4, Beaver Dam, Dodge, WI, sheet 4B, dwelling 101, family 114, line 97, Grotzke, Albert; Database and images, Ancestry.com LLC, Ancestry.com : 2002 (http://www.ancestry.com/ : accessed 10/05/2022); citing Fifteenth Census of the United States, 1930 U. S. Census, population schedules, National Archives and Records Administration Microfilm Publication T626 (2667 rolls), Records of the Bureau of the Census, Record Group 29, National Archives, Washington, DC, roll 2568, image 610 [Surety: 3]. |
| 6. |
User submitted cemetery data, "Find A Grave," Albert Emil Grotzke (#187152317); Database online, Find-A-Grave (Jim Tipton, Founder), Find A Grave : 1995 (http://www.FindAGrave.com/ : accessed 06/18/2021) [Surety: 3]. |
| 7. |
Ancestry.com Operations, Inc., Wisconsin State Censuses 1855-1905, 1895, Fond Du Lac, Fond Du Lac, WI, page 8, line 8, A Gratzke; Database and images, Ancestry.com LLC, Ancestry.com : 2007 (http://www.ancestry.com/ : accessed 08/20/2025); citing Wisconsin Historical Society, Madison, Wisconsin, Wisconsin State Census, 1895 (10 reels) [Surety: 3]. |
| 8. |
Ancestry.com Operations, Inc., Wisconsin State Censuses 1855-1905, 1875, Portage, Columbia, WI, page 4, line 21, Louis Grotzke; Database and images, Ancestry.com LLC, Ancestry.com : 2007 (http://www.Ancestry.com/ : accessed 10/06/2022); roll 1); citing Wisconsin Historical Society, Madison, Wisconsin, Wisconsin State Census, 1875, microfilm (5 reels) [Surety: 3]. |
| 9. |
Ancestry.com Operations, Inc., Wisconsin State Censuses 1855-1905, 1885, 5th Ward, Portage, Columbia, WI, page 3, line 19, Gretzke, Louis; Database and images, Ancestry.com LLC, Ancestry.com : 2007 (http://www.Ancestry.com/ : accessed 08/24/2025); roll 2); citing Wisconsin Historical Society, Madison, Wisconsin, Wisconsin State Census, 1885, microfilm (10 reels) [Surety: 3]. |
| 10. |
Ancestry.com Operations, Inc., 1880 United States Federal Census, ED 35, 5th Ward, Portage, Columbia, WI, page 7, dwelling 65, family 68, line 41, Bilke, Bertha; Database and images, Ancestry.com LLC, Ancestry.com : 2010 (http://www.Ancestry.com/ : accessed 08/25/2025); citing Tenth Census of the United States, 1880 U. S. Census, population schedules, National Archives and Records Administration Microfilm Publication T9 (1454 rolls), Records of the Bureau of the Census, Record Group 29, National Archives, Washington, DC, roll 1420, image 489 [Surety: 3]. |