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• Infant Mortality Rate 1937 to 1973: The highest rate recorded was 85.41 infant deaths per thousand live births in 1939, and the lowest was 2.97 in 1965.

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
COLNE VALLEY	Preferred	English			F. Youngs, Local Administrative Units: Northern England (London: Royal Historical Society, 1991), p. 790.
E461219	CASWEB identifiers for 1971 Local Govt Districts	English

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
WEST RIDING	Administrative County	1937	1974	F. Youngs, Local Administrative Units: Northern England (London: Royal Historical Society, 1991), p. 790.
WEST YORKSHIRE	Conurbation

Boundary changes

This unit was affected by the following changes:

Date	Type of change	Other unit involved	Area transferred	Authority
01 Apr 1937	was created through the abolition of	GOLCAR UD	Area: 1443 acres. Population in 1931: 7875.	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. 87427. The County of York, West Riding Review Order, 1937.
01 Apr 1937	was created through the abolition of	LINTHWAITE UD	Area: 999 acres. Population in 1931: 5220.	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. 87427. The County of York, West Riding Review Order, 1937.
01 Apr 1937	was created through the abolition of	MARSDEN UD	Area: 8633 acres. Population in 1931: 5723.	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. 87427. The County of York, West Riding Review Order, 1937.
01 Apr 1937	was created through the abolition of	SCAMMONDEN UD	Area: 1807 acres. Population in 1931: 394.	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. 87427. The County of York, West Riding Review Order, 1937.
01 Apr 1937	was created through the abolition of	SLAITHWAITE UD	Area: 3172 acres. Population in 1931: 5183.	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. 87427. The County of York, West Riding Review Order, 1937.

Lower level units

This unit contained the following units:

Name	Type	Start	End	Authority
CENTRAL LG_Ward	Parish-level Unit			1961 Census of England and Wales, Table 3, 'Acreage, Population, Private Households and Dwellings', for 'LAA, Wards, CP in RD, Con, NT'.
COLNE VALLEY CP	Parish-level Unit	1937	1974	F. Youngs, Local Administrative Units: Northern England (London: Royal Historical Society, 1991), p. 529.
NORTH LG_Ward	Parish-level Unit			1961 Census of England and Wales, Table 3, 'Acreage, Population, Private Households and Dwellings', for 'LAA, Wards, CP in RD, Con, NT'.
NORTH EAST LG_Ward	Parish-level Unit			1961 Census of England and Wales, Table 3, 'Acreage, Population, Private Households and Dwellings', for 'LAA, Wards, CP in RD, Con, NT'.
SOUTH EAST LG_Ward	Parish-level Unit			1961 Census of England and Wales, Table 3, 'Acreage, Population, Private Households and Dwellings', for 'LAA, Wards, CP in RD, Con, NT'.
WEST LG_Ward	Parish-level Unit			1961 Census of England and Wales, Table 3, 'Acreage, Population, Private Households and Dwellings', for 'LAA, Wards, CP in RD, Con, NT'.