William married Ada Caroline Morgan Connell on 6 Nov 1900 in Ontario, Canada. Ada (daughter of Samuel Connell and Martha Newman Wallace) was born on 8 May 1874 in Derby Township, Grey County, Ontario, Canada; died on 20 Dec 1944 in Owen Sound, Ontario, Canada; was buried in Greenwood Cemetery, Owen Sound, Ontario, Canada. [Group Sheet] [Family Chart]

1. Beatrice Ann Walker was born on 28 Sep 1901 in Grey County, Ontario, Canada; died on 9 Apr 1962 in Sarnia, Ontario, Canada; was buried in Greenwood Cemetery, Owen Sound, Ontario, Canada.
2. Carroll Samuel Walker was born on 10 Jul 1903 in Ontario, Canada; died in 1991; was buried in Greenwood Cemetery, Owen Sound, Ontario, Canada.
3. Harvey Vickers Walker was born on 29 Oct 1908 in Grey County, Ontario, Canada; died on 13 Dec 1908 in Grey County, Ontario, Canada.
4. Kathleen Coralie Walker was born on 14 Sep 1910 in Owen Sound, Ontario, Canada; died on 3 Oct 1969 in Toronto, Ontario, Canada.