For governance purposes it is divided between the city of Miramichi[5] and the Greater Miramichi rural district,[6] with small border areas belonging to the incorporated rural communities of Alnwick (Bartibog area) and Miramichi River Valley (Chaplin Island Road),[5] all of which are members of the Greater Miramichi Regional Service Commission,[7] and the Eel Ground 2 and Metepenagiag Uta'nk Indian reserves, which are not part of the RSC.
Newcastle was erected in 1786 as one of Northumberland County's original parishes.[13] including all or part of most parishes in Northumberland and Kent Counties.
on the east by a line beginning on the county line at a point about 3.3 kilometres west-southwesterly of Route 8, then running south[a] to the Route 8 bridge over the Bartibog River, then down the Bartibog River to its mouth;
on the west by a line beginning on southeastern corner of a grant to Oliver Willard on the western side of Jones Cove, then running north[a] to the county line;
including Bartibog Island in the Miramichi.
Evolution of boundaries
The original boundaries of Newcastle were Westmorland County on the south, a line due west from the northern tip of Portage Island on the north, and a north-south line through the mouth of Cains River on the west.
In 1814 Northumberland County was completely reorganised and Newcastle took on a more recognisable shape.[19] The boundary with Northesk was different, starting near the old courthouse and passing through the intersection of Newcastle Boulevard and Beaverbrook Road.
In 1824 the boundary with Northesk was moved west to its modern starting point on Jones Cove.[20] The direction of the boundary was also changed to run north instead of prolongation a grant line, which transferred a triangle of territory in the south to Newcastle and a triangle in the north to Northesk.
In 1850 the boundary with Alnwick Parish was adjusted by running further up the Bartibog River before turning north.[16]
Communities
Communities at least partly within the parish.[14][15][21]bold indicates an incorporated municipality or Indian reserve; italics indicate a name no longer in official use
^ abBy the magnet of 1850,[16] when declination in the area was between 20º and 21º west of north.[17] The Territorial Division Act clause referring to magnetic direction bearings was omitted in the 1952[18] and 1973 Revised Statutes.[2]
^The Territorial Division Act[2] divides the province into 152 parishes, the cities of Saint John and Fredericton, and one town of Grand Falls. The Interpretation Act[3] clarifies that parishes include any local government within their borders.
^"Alnwick Parish". Place Names of New Brunswick: Where is Home? New Brunswick Communities Past and Present. Provincial Archives of New Brunswick. Retrieved 26 March 2021.
^"Newcastle Parish". Place Names of New Brunswick: Where is Home? New Brunswick Communities Past and Present. Provincial Archives of New Brunswick. Retrieved 26 March 2021.
^ abcde"No. 51". Provincial Archives of New Brunswick. Department of Natural Resources and Energy Development. Retrieved 18 June 2021. Remainder of parish on maps 52, 60, 61, and 69 at same site.
^ abcde"134"(PDF). Transportation and Infrastructure. Government of New Brunswick. Retrieved 18 June 2021. Remainder of parish on mapbooks 155, 156, 172–174, 188–190, 203, and 204 at same site.
^"Chapter 227 Territorial Division Act". The Revised Statutes of New Brunswick 1952 Volume III. Fredericton: Government of New Brunswick. 1952. pp. 3725–3771.