| Children |
| | 1. Petrus Zapp, b. 09 Feb 1828, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
| | 2. Nicolaus Zapp, b. 25 Sep 1829, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
| | 3. Georgius Zapp, b. 01 Oct 1830, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
| | 4. Joannes Petrus Zapp, b. 22 Dec 1832, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
| | 5. Simon Zapp, b. 20 May 1835, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
| | 6. Nicholas Zapp, b. 04 Mar 1838, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
| | 7. Friedericus Wilhelmus Zapp, b. 14 Jul 1840, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany , d. Dunn County, Wisconsin  |
| | 8. Christopher Zapp, b. 09 Nov 1842, Udersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany  |
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