Harry married Florence Allen McKnight on 14 Jul 1916 in Oxbow, Saskatchewan, Canada. Florence (daughter of David McKnight and Catherine Louise Burton) was born in 1898 in Alameda, Saskatchewan, Canada; died in Apr 1971 in Kenora, Ontario, Canada; was buried in Oxbow Cemetery, Oxbow, Saskatchewan, Canada. [Group Sheet] [Family Chart]

1. Ellen Louise Halliwell was born in 1917 in Oxbow, Saskatchewan, Canada; died on 17 Aug 2003 in Winnipeg, Manitoba, Canada; was buried in Oxbow Cemetery, Oxbow, Saskatchewan, Canada.
2. Margaret Hannah Halliwell was born on 22 Oct 1918 in Oxbow, Saskatchewan, Canada; died on 13 Oct 2004 in Saskatoon, Saskatchewan, Canada; was buried in Woodlawn Cemetery, Saskatoon, Saskatchewan, Canada.
3. Harry McKnight Halliwell, Jr. was born on 17 Aug 1920 in Oxbow, Saskatchewan, Canada; died in 19 Nov 2006 in Ottawa, Ontario, Canada; was buried in Oxbow Cemetery, Oxbow, Saskatchewan, Canada.
4. Dr. David Halliwell was born on 28 Jun 1922 in Oxbow, Saskatchewan, Canada; died on 6 May 2007 in Victoria, British Columbia, Canada; was cremated in Oxbow Cemetery, Oxbow, Saskatchewan, Canada.
5. Florence Halliwell was born in 1925 in Oxbow, Saskatchewan, Canada; died in 2003 in Kenora, Ontario, Canada; was cremated in Cremated.