Walter married Christina Propheter on 13 Jun 1901. Christina (daughter of Friedrich Propheter and Margaretha Zimmermann) was born on 19 Apr 1873 in Cumberland, Allegany County, Maryland, USA; died on 1 May 1927 in Union Grove, Whiteside County, Illinois, USA. [Group Sheet] [Family Chart]

1. Admiral Paul Westley Watson was born on 20 Aug 1902 in Union Grove, Whiteside County, Illinois, USA; died on 17 Aug 1998 in Hillsborough County, Florida, USA; was buried in Arlington National Cemetery, Arlington County, Virginia, USA.
2. Dwight Lyman Watson was born on 20 Oct 1904 in Union Grove, Whiteside County, Illinois, USA; died on 2 Oct 1907 in Union Grove, Whiteside County, Illinois, USA; was buried in Grove Hill Cemetery, Morrison, Whiteside County, Illinois, USA.
3. Earl Clemens Watson was born on 31 Jul 1906 in Unionville, Whiteside County, Illinois, USA; died on 4 Feb 1982 in Haines City, Polk County, Florida, USA; was buried in Forest Hill Cemetery, Haines City, Polk County, Florida, USA.
4. Robert E. Watson was born on 9 Jul 1909 in Union Grove, Whiteside County, Illinois, USA; died on 15 May 1911 in Union Grove, Whiteside County, Illinois, USA; was buried in Grove Hill Cemetery, Morrison, Whiteside County, Illinois, USA.
5. Chester Walter Watson was born on 23 Apr 1912 in Morrison, Whiteside County, Illinois, USA; died on 29 Nov 2007 in Rockford, Winnebago County, Illinois, USA; was buried in Grove Hill Cemetery, Morrison, Whiteside County, Illinois, USA.