Available Themes

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• Total Population 1801 to 1931: Population fell from 76 in 1801 to 50 in 1931.
• Occupational Structure in 1831: Out of 23 males aged 20 and over, 6 worked in Retail and Handicrafts.
• Occupational Structure in 1881:

Here we are presenting statistics for a historical unit, which may have changed its boundaries significantly during the period covered.

Alternative names

The following alternative names exist:

Name	Status	Language	Start	End	Authority
LLANFAIR TRELYGEN	Preferred	English			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
LLANFAIR TREF HELYGEN	Alternate	English			1851 Census of Great Britain, Table [1], 'Population Abstract'.
LLAN FAIR TREF HELYGON	Alternate	English			1831 Census of Great Britain, Table [1], 'Population Abstract'.
LLANFAIRTREFLYGEN	Alternate	English			1871 Census of England and Wales, Table 4, 'Area; Houses and Inhabitants, 1861 and 1871, in the Parishes and Places comprised in each Superintendent Registrar's District'.
LLANFAIR TREFLYGEN	Alternate	English			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
TREFHELYGEN	Alternate	English			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.

Unit associations

We know of no associations with other units.

Unit history

This unit was part of the following units:

Name	Type	Start	End	Authority
CARDIGANSHIRE	Ancient County			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
NEWCASTLE IN EMLYN RegD/PLU	Poor Law Union/Reg. District			1911 Census of England and Wales, Table 5, 'Registration Counties, Districts and Sub-districts with their constituent civil parishes. - Urban or Rural District in which each parish is situated; Area; families or separate occupiers, and population, 1901 and 1911; and population enumerated in Institutions, large establishments, and on vessels, &c., 1911'.
LLANDYSSIL RD	Local Government District		01 Apr 1934	1911 Census of England and Wales, Table 5, 'Registration Counties, Districts and Sub-districts with their constituent civil parishes. - Urban or Rural District in which each parish is situated; Area; families or separate occupiers, and population, 1901 and 1911; and population enumerated in Institutions, large establishments, and on vessels, &c., 1911'.
NEWCASTLE IN EMLYN RSD	Sanitary District			1891 Census of England and Wales, Table 4, 'Area and Population in Rural Sanitary Districts'.
PENBRYN	Registration sub-District			1911 Census of England and Wales, Table 5, 'Registration Counties, Districts and Sub-districts with their constituent civil parishes. - Urban or Rural District in which each parish is situated; Area; families or separate occupiers, and population, 1901 and 1911; and population enumerated in Institutions, large establishments, and on vessels, &c., 1911'.
TROEDYRAUR Hundred	Ancient District			1831 Census of Great Britain, Table [1], 'Population Abstract'.
LLANDYFRIOG CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.

Boundary changes

This unit was affected by the following changes:

Date	Type of change	Other unit involved	Area transferred	Authority
01 Apr 1934	was abolished to enlarge	LLANDYFRIOG CP/AP	Area: 650 acres. Population in 1931: 50.	1931 Census of England and Wales, Table B, 'Areas altered between 26th April, 1931 and 30th June, 1934, showing constitution as at the latter date, in terms of constitution as at the former date, together with particulars of acreage and population'.; M. of H. Order No. 77523. The Cardiganshire Review Order, 1934

Lower level units

This unit contained the following units:

Name	Type	Start	End	Authority
TREFHELYGEN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.