| Washington, District of Columbia: National Archives and Records Administration (NARA) | |
| 17 Jul 1850 | |
| Microfilm | |
| District 9, Fond du Lac, Fond du Lac County, Wisconsin | |
| Census | |
| Seventh Census of the United States, 1850 | |
| publication M432, roll 997, sheet 246A | |
| US-1850-1o | |
| Image (JPG): William Robert Herndon | |
| S679 | |
| [US-1850-1o] "District 9, Fond du Lac, Fond du Lac County, Wisconsin," Seventh Census of the United States, 1850, Washington, District of Columbia: National Archives and Records Administration (NARA), publication M432, roll 997, sheet 246A. | |
| Alice M Bonnell Alvin M Bonnell John Bonnell Oscar A Bonnell Persie B Mapes |