Oliver married Marguerite Morais 23 Mai 1853, Trois-Rivieres, Québec, Canada. Marguerite (daughter of Andre Blouin and Françoise Bonin, daughter of Charles Morais and Julie Picotte) was born Abt 1822, Canada French. [Group Sheet]

1. Melfby Harnois was born Abt 1841, Canada.
2. Joseph Louis Delaunay was born 1 Aug 1800, Montreal, Notre-Dame-de-Montreal, Quebec, Canada; died 18 Nov 1887, Bourbonnais, Kankakee, Illinois, USA.
3. Armeane Louisa Harnois was born 09 Aug 1844, Quebec, Canada; died 13 Jun 1913, Merrill, Lincoln, Wisconsin, USA; was buried 16 Jul 1913, Merrill, Lincoln, Wisconsin, USA.
4. Louis François Xavier Delaunay was born Sep 1814, Saint-Leon-le-Grand (St-Léon-le-Grand), Québec (Quebec), Canada.
5. Napoleon Harnois was born Abt 1846, Canada.
6. Ida Harnois was born Abt 1858, Wisconsin.
7. Esther Harnois was born Abt 1863, Wisconsin.
8. Lila Harnois was born Abt 1865, Wisconsin.
9. Cordelia Harnois was born , Canada.