| Children |
| | 1. Marie Wilhelmine Friederikke Sy, b. 24 Nov 1840, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
| | 2. Johann Wilhelm Sy, b. 18 Dec 1841, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
| | 3. Friederike Marie Sy, b. 28 Jul 1843, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
| | 4. Wilhelmine Christine Sy, b. 23 Apr 1845, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
| + | 5. Augusta Louise Sy, b. 31 Jan 1847, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
| | 6. Ferdinand August Sy, b. 22 Aug 1849, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
| | 7. August Hermann Sy, b. 22 Mar 1853, Bergholz, Kreis Prenzlau, Brandenburg, Germany |
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