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The parish of Trewen, (Cornish: Trewynn), is situated in the Deanery of Trigg Minor, and the Hundred of East. It is bounded on the north by Egloskerry, on the east by St Thomas-by-Launceston, on the south by South Petherwin and Lewannick, and on the west by Altarnun and Laneast. The origin of the parish name is probably from the Cornish for 'white farm'.

The parish is situated on the edge of Bodmin Moor to the west of Launceston. The only village is Piper's Pool.



Census information for this parish (1841 - 1901) is held in the Cornwall Record Office. The Cornwall Family History Society offers a census search service for its members. The Cornwall Family History Society have also published on-line census detail by surname on the FamilyHistoryonLine site.

Specific census information for this parish is available as follows:

Church History

Church Records

Civil Registration

The parish of Trewen is in the Launceston Registration District, and has been since 1st July 1837. There were sub-districts at Altarnun, Launceston, North Hill, North Petherwin and St Stephen-by-Launceston, but these are now all closed. Parishes within the district were: Altarnun, Boyton, Egloskerry, Laneast, Launceston, Lawhitton, Lewannick, Lezant, Northill, St. Mary Magdalene, St. Stephens by Launceston, St. Thomas the Apostle, St. Thomas Street, South Petherwin, Stokeclimsland, Tremaine, Treneglos, Tresmeer, Trewen, Warbstow.

The Superintendant Registrar can be contacted at: Hendra, Dunheved Road, Launceston, PL15 9JG. Tel: 01566 772464.

Description & Travel



Poorhouses, Poor Law, etc.

Trewen parish was part of the Launceston Union for Poor Law administration and parish relief.


  • Population in 1801 - 193 persons
  • Population in 1811 - 190 persons
  • Population in 1821 - 206 persons
  • Population in 1831 - 213 persons
  • Population in 1841 - 221 persons
  • Population in 1851 - 188 persons
  • Population in 1861 - 178 persons
  • Population in 1871 - 150 persons
  • Population in 1881 - 141 persons
  • Population in 1891 - 124 persons
  • Population in 1901 - 120 persons
  • Population in 1911 - 108 persons
  • Population in 1921 - 99 persons
  • Population in 1931 - 103 persons
  • Population in 1951 - 85 persons
  • Population in 1961 - 80 persons
  • Population in 1971 - 100 persons
  • Population in 1981 - 110 persons
  • Population in 1991 - 125 persons
  • Population in 2001 - 134 persons
  • Population in 2011 - 142 persons


The parish comprises 992 acres of land and 2 acres of water.

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