| Washington, District of Columbia: National Archives and Records Administration (NARA) | |
| 10 Jun 1880 | |
| Microfilm | |
| 3rd Ward, Fond du Lac, Fond du Lac County, Wisconsin | |
| Census | |
| Tenth Census of the United States, 1880 | |
| publication T9, roll 1425, E.D. 41, sheet 210B, page 26 | |
| US-1880-1r | |
| Image (JPG): William Robert Herndon | |
| S373 | |
| [US-1880-1r] "3rd Ward, Fond du Lac, Fond du Lac County, Wisconsin," Tenth Census of the United States, 1880, Washington, District of Columbia: National Archives and Records Administration (NARA), publication T9, roll 1425, E.D. 41, sheet 210B, page 26. | |
| Casper Bonnell Frederick John Bonnell Hertilla A Bonnell Oscar A Bonnell Lucia E Killips |