John married Harriet D. SWAYZE on 18 Sep 1849. Harriet (daughter of Hiram SWAYZE and Hannah PUTNAM) was born on 24 Apr 1825 in Beaverdams, Welland, Ontario; died on 16 Jan 1890 in Toronto, York, Ontario. [Group Sheet] [Family Chart]

1. William KERR was born on 3 Jun 1850; died on 25 Dec 1902.
2. Clara Maria KERR was born on 20 Sep 1852 in Ontario.
3. Frederick John KERR was born on 17 Mar 1854 in Ontario.
4. Archibald Osborne KERR was born on 17 Dec 1856 in Ontario; died on 18 Mar 1901 in Etobicoke, York, Ontario.
5. Robert KERR was born on 3 Mar 1859 in Ontario; died on 30 Jun 1918 in Brandon, Manitoba; was buried in Brandon Municipal Cemetery, Brandon, Manitoba.
6. Hannah E. KERR was born on 17 Feb 1860 in Ontario; died on 27 Oct 1882.
7. Harriet KERR was born on 30 Sep 1863; died on 7 May 1864.
8. John Franklin KERR was born on 4 Apr 1865.