William married Catherine Sarah Dillabough on 18 Apr 1866 in Smith Falls, Ontario, Canada. Catherine (daughter of Peter Dillabough and Elizabeth Sparrow) was born on 1 Nov 1843 in Montague Township, Lanark County, Ontario, Canada; died on 29 May 1908 in Smiths Falls, Lanark County, Ontario, Canada. [Group Sheet] [Family Chart]

1. Julia Neelin was born in 1869 in Smiths Falls, Montague Township, Lanark County, Ontario, Canada.
2. Joseph Samuel Neelin was born in 1871 in Smiths Falls, Lanark County, Ontario, Canada.
3. Peter Neelin was born in 1873 in Lanark County, Ontario, Canada.