Hello, Sheri,
Did you ever get a response this message regarding Oliver Decelle,his wife Elizabeth and his son Napoleon?
If not, here are the applicable records (attached).
Olivier Decelles and Elizabeth Langelier were married on 7 Nov 1848 at St-Damase, in St-Hyacinthe County, Quebec. Olivier is listed as the son of Jean-Baptiste Decelles, farmer, and Angelique Frechette.
Elizabeth Langelier is listed as the daughter of Michel Langelier and Marie Anne Chabot.
Olivier Decelle was born 16 Mar 1826 at St-Damase, St-Hyacinthe County, Quebec.
Elizabeth Langelier was born 31 July and baptized 1 Aug 1929 at St-Jude, St-Hyacinthe County, Quebec, Canada. Her mother's maiden name is spelled "Chabotte" on this record.
Napoleon Decelle, son of Olivier and Elizabeth, was baptized Louis Napoleon Olivier Decelle, born and baptized 10 July 1849 at St-Damase, St-Hyacinthe County, Quebec, Canada.
I hope this helps.
MR