Allen married Leona C. Nelson on 26 May 1931 in Chicago, Cook County, Illinois, USA. Leona (daughter of Robert W. Nelson and Margaret Anne Hahn) 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. [Group Sheet] [Family Chart]

1. Margaret Patricia Boardman was born on 17 Sep 1931 in Chicago, Cook County, Illinois, USA; died on 23 Jan 1999; was buried on 27 Jan 1999 in Holy Sepulchre Cemetery, Alsip, Cook County, Illinois, USA.
2. John William Boardman was born on 12 Aug 1933 in Chicago, Cook County, Illinois, USA; died on 28 May 2006.
3. James Boardman
4. Mary Ann Boardman
5. Dorothy Boardman