| Washington, District of Columbia: National Archives and Records Administration (NARA) | |
| 29 Jun 1870 | |
| Microfilm | |
| Third Ward, Fond du Lac, Fond du Lac County, Wisconsin | |
| Census | |
| Ninth Census of the United States, 1870 | |
| publication M593, roll 1713, page 41, sheet 267B | |
| US-1870-1h | |
| Image (JPG): William Robert Herndon | |
| S372 | |
| [US-1870-1h] "Third Ward, Fond du Lac, Fond du Lac County, Wisconsin," Ninth Census of the United States, 1870, Washington, District of Columbia: National Archives and Records Administration (NARA), publication M593, roll 1713, page 41, sheet 267B. | |
| Casper Bonnell Frederick John Bonnell Hertilla A Bonnell Oscar A Bonnell Lucia E Killips |