Wilhelm married Mary Ann Mock on 12 Jun 1902 in Chicago, Cook County, Illinois, USA. Mary (daughter of Heinrich Mock and Karolina Burkhard) was born on 26 Sep 1875 in Rock Island County, Illinois, USA; died on 25 May 1943 in Chicago, Cook County, Illinois, USA; was buried in Arlington Cemetery, Elmhurst, DuPage County, Illinois, USA. [Group Sheet] [Family Chart]

1. Katherine Bader was born in 1905 in Chicago, Cook County, Illinois, USA.
2. George Bader was born in 1906 in Chicago, Cook County, Illinois, USA.
3. Marie Bader was born in 1907 in Chicago, Cook County, Illinois, USA.

Family/Spouse: Geiger. [Group Sheet] [Family Chart]

1. Herman Bader