1. Johann Hermann Landwehr was born on 3 Sep 1812 in Grönloh, Niedersachsen, Germany and was christened on 9 Sep 1812 in Badbergen, Niedersachsen, Germany. He died on 17 Oct 1890 in Lechterke, Niedersachsen, Germany.
Johann married Marie Adelheid Hildebrandt, daughter of Jürgen Hildebrandt and Margaretha Adelheid Grönloh, on 29 Mar 1836 in Badbergen, Niedersachsen, Germany. Marie was born on 30 Sep 1815 in Lechterke, Niedersachsen, Germany and was christened on 5 Oct 1815 in Badbergen, Niedersachsen, Germany. She died on 25 Mar 1892 in Lechterke, Niedersachsen, Germany.
They had the following children:
2 M i Johann Wilhelm Landwehr was born on 11 Aug 1834 in Lechterke, Niedersachsen, Germany and was christened on 17 Aug 1834 in Badbergen, Niedersachsen, Germany. 3 F ii Catharina Margaretha Landwehr was born on 28 Sep 1836 in Lechterke, Niedersachsen, Germany. She died on 6 Dec 1881 in Wehdel, Osnabrück, Niedersachsen, Germany and was buried in Badbergen, Niedersachsen, Germany. Catharina married Johann Hermann Koopmann on 3 Dec 1857 in Badbergen, Niedersachsen, Germany. + 4 M iii Johann Hermann "John" Landwehr was born on 20 Mar 1839 and died on 9 Dec 1905. 5 F iv Catharina Maria Landwehr was born on 26 Oct 1841 in Lechterke, Niedersachsen, Germany and was christened on 4 Nov 1841 in Badbergen, Niedersachsen, Germany. She died on 1 Feb 1921 in New Orleans, Orleans, LA and was buried on 3 Feb 1921 in New Orleans, Orleans, LA. Catharina married Hinrich Wilhelm "Henry" Buck, son of Matthias Buck and Anna Margaretha Butt, on 1 Mar 1862 in New Orleans, Orleans, LA. Hinrich was born on 24 Jan 1838 in Lüdingworth, Niedersachsen, Germany and was christened on 3 Feb 1838 in Lüdingworth, Niedersachsen, Germany. He died on 4 Aug 1898 in New Orleans, Orleans, LA and was buried on 5 Aug 1898 in New Orleans, Orleans, LA. 6 M v Hermann Heinrich Landwehr was born on 10 Apr 1844 in Lechterke, Niedersachsen, Germany and was christened on 18 Apr 1844 in Badbergen, Niedersachsen, Germany. He died on 19 Mar 1845 in Lechterke, Niedersachsen, Germany and was buried on 21 Mar 1845 in Badbergen, Niedersachsen, Germany. + 7 M vi Johann Hermann Heinrich "Henry" Landwehr was born on 3 Jan 1847 and died on 21 Nov 1904. + 8 M vii Gerhard Heinrich Landwehr was born on 8 Jan 1850 and died on 15 Dec 1924.