Robert married Margaret Anne Hahn on 20 Sep 1904 in Indiana, USA. Margaret (daughter of Francis Joseph Hahnn and Mary Brickler) was born on 29 Mar 1886 in Tippecanoe County, Indiana, USA; died on 15 Oct 1964 in Cook County, Illinois, USA. [Group Sheet] [Family Chart]

1. Herbert William Nelson was born on 15 Dec 1905 in Indiana, USA.
2. Leona C. Nelson was born on 9 Feb 1908 in Indiana, USA; died on 3 May 1994 in Cook County, Illinois, USA; was buried in Holy Sepulchre Cemetery, Alsip, Cook County, Illinois, USA.