John married Mary Campbell Boyle in 1838. Mary was born in 1817 in Scotland, United Kingdom; died on 3 Apr 1861 in Perth County, Ontario, Canada; was buried in Roy's Cemetery, Fullarton, Ontario, Canada . [Group Sheet] [Family Chart]

1. David Dow was born in Mar 1843 in Lanark, Ontario, Canada; died on 14 Aug 1927 in Perth County, Ontario, Canada; was buried in Roy's Cemetery, Fullarton, Ontario, Canada .
2. James John Dow was born on 10 Apr 1847 in Lanark, Ontario, Canada; died on 20 Feb 1920 in East Wawanosh Township, Ontario, Canada; was buried in Wingham Cemetery, Wingham, Ontario, Canada.