Restigouche County is located in northern New Brunswick.
On the border of the Province of Quebec, with only the Van Horne bridge seperating them at the Campbellton/Pointe a la Croix border.
Here are some parishes of Restigouche and date they were established.

Addington 1826
Eldon 1826
Durham 1829
Colborne 1839
Dalhousie 1839
Balmoral 1876
Charlo 1853
Grimmer 1916
St Quentin 1920

Census for Restigouche co. are available for the years 1851 to 1901 these census were done each 10 years...