August married Ernstina Wilhelmine Grueneberg about 1867. Ernstina (daughter of Daniel Friedrich Grueneberg and Friedericke Wilhelmine Ernestine Krueger) was born on 14 Jan 1839 in Margarethenhoff, Pommern, Prussia, Germany; died on 28 Jan 1913 in , Dodge, Wisconsin, United States. [Group Sheet] [Family Chart]

1. Ludwig Frederick Wilhelm Bachmann was born on 15 Jun 1868 in , Dodge, Wisconsin, United States; died on 21 May 1916 in , LaMoure, North Dakota, United States.
2. Ida Auguste Emilia Bachmann was born on 12 Jul 1869 in , Dodge, Wisconsin, United States; died on 16 Jan 1955 in , Dodge, Wisconsin, United States.
3. Julius Otto August Bachmann was born on 19 Mar 1871 in , Dodge, Wisconsin, United States; died on 31 Dec 1893 in , Dodge, Wisconsin, United States.
4. Wilhelmine Albertine Friederike Bachmann was born on 19 Dec 1875 in , Dodge, Wisconsin, United States; died on 4 Oct 1961 in , Dodge, Wisconsin, United States.
5. Wilhlelm Johann Franz Bachmann was born on 13 Jun 1877 in , Dodge, Wisconsin, United States; died on 24 Jun 1981 in , Columbia, Wisconsin, United States.