June 13, 2003:

The Devereaux family (Irish, not French) were in the Bytown area by the 1830's.

Here's a baptism at Notre Dame in 1838:

19 Aug 1838
Baptism of Thomas, born 7 wks. ago of the marriage of Thomas Devrix and Margaret Whelan
Witnesses: John Turner & Ann Burgess
(Later, John Turner, married to Susan Whelan, was a neighbour in Osgoode Township)

Source: Ellen Paul's Notre Dame Database.
_________________________________

1881 Census Place:	Osgoode, Russell, Ontario, Canada
	Source:	FHL Film 1375865  NAC C-13229  Dist 104  SubDist G  Div 2  Page 30  Family 132
	Sex	Marr	Age	Origin	Birthplace
Thomas DEVERIX	M	W	75	Irish	Ireland
	Occ:	Farmer	Religion:	Catholic	
Thomas DEVERIX	M		42	Irish	Ontario
	Occ:	Farmer	Religion:	Catholic	
Mary DEVERIX	F		27	Irish	Ontario
			Religion:	Catholic	
_________________________________
	
1881 Census Place:	Osgoode, Russell, Ontario, Canada
	Source:	FHL Film 1375865  NAC C-13229  Dist 104  SubDist G  Div 2  Page 30  Family 133
	Sex	Marr	Age	Origin	Birthplace
Edward DEVERIX	M	M	35	Irish	Ontario
	Occ:	Farmer	Religion:	Catholic	
Bridget DEVERIX	F	M	25	Irish	Ontario
			Religion:	Catholic	
Thomas P. DEVERIX	M		5	Irish	Ontario
			Religion:	Catholic	
Mary Ann DEVERIX	F		3	Irish	Ontario
			Religion:	Catholic	
Steven DEVERIX	M		2	Irish	Ontario
			Religion:	Catholic	
John DEVERIX	M		1	Irish	Ontario
			Religion:	Catholic	
________________________________

On the 1863 Belden map, Thomas senior has two hundred acres. By 1879, Thomas senior has 
subdivided the lot - 100 acres for himself (and his eldest son) and fifty acres
each for his sons Edward and John. This pioneer farm was on the south side of what is
today the Snake Island Road, across from the Minogue farm.

There are records of the Devereaux ancestors at Notre Dame, St. Mary's at South Gloucester
and St. John's in Enniskerry.