Per the 1891 census for Essex, Ontario there is only one George Meloche born about 1878. His marriage record and later census records state that he was born about 1878.The other George Meloches are older.
This is only a possibility - a marriage record is needed for George Meloche & Mary Latour.
1 Georges MELOCHE b: 08 Mar 1836 in Détroit, Sandwich de Windsor, Ontario Baptism: 09 Mar 1836 Détroit, L`Assomption de Sandwich de Windsor, Ontario
.. +Mathilde CAILLET, CAHILL m: 03 May 1859 in L'Assomption de Sandwich, Windsor, Essex, Ontario
*2nd Wife of Georges MELOCHE:
.. +Rosalie Anne DROUILLARD b: 01 Jan 1854 in Essex, Ontario m: 17 Mar 1873 in St Joseph, Rivière aux Canards, Essex, Ontario - Baptism: 06 Jan 1854 St Jean Baptiste, Amherstburg, Essex, Ontario, n Rosalie
... 2 George MELOCHE b: Abt. 1877 in Ontario <<<<<<<<<<<<<<<