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• Infant Mortality Rate 1965 to 1973: The highest rate recorded was 18.22 infant deaths per thousand live births in 1971, and the lowest was 10.83 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
HILLINGDON	Preferred	English			F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 310.
E140388	CASWEB identifiers for 1971 Local Govt Districts	English

Unit associations

This unit was associated with the following other units:

Nature of association	Other unit involved	Type of unit	Authority
was succeeded by	HILLINGDON	District/Unitary Authority	F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 310.

Unit history

This unit was part of the following units:

Name	Type	Start	End	Authority
GREATER LONDON	Administrative County	01 Apr 1965	1974	F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 310.

Boundary changes

This unit was affected by the following changes:

Date	Type of change	Other unit involved	Area transferred	Authority
01 Apr 1965	was created through the abolition of	HAYES AND HARLINGTON UD	Area: 2088 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; The London Government Act, 1963
01 Apr 1965	was created through the abolition of	RUISLIP NORTHWOOD UD	Area: 2664 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; The London Government Act, 1963
01 Apr 1965	was created through the abolition of	UXBRIDGE MB/UD	Area: 4143 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; The London Government Act, 1963
01 Apr 1965	was created through the abolition of	YIEWSLEY AND WEST DRAYTON UD	Area: 2135 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; The London Government Act, 1963
01 Apr 1968	was created from part of	HOUNSLOW LB	Area: 1 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; M. of H. and LGBO No. 34497. The River Crane (Local Boundaries) Order, 1968
01 Apr 1969	was created from part of	HOUNSLOW LB	Area: 3 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; M. of H. and LGBO No. 40507. The River Crane (Local Boundaries) Order, 1969
01 Apr 1969	was reduced to create	HOUNSLOW LB	Area: 1 acres.	1971 Census of England and Wales, Table 4, 'Intercensal changes of Boundary (between 23rd April, 1961, and 25th April, 1971)', for 'AC, LAA, CP, NT'.; M. of H. and LGBO No. 40507. The River Crane (Local Boundaries) Order, 1969

Lower level units

This unit contained the following units:

Name	Type	Start	End	Authority
HARLINGTON CP/AP	Parish-level Unit	1965		F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 326.
HAYES AP/CP	Parish-level Unit	1965		F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 3278.
RUISLIP AP/CP	Parish-level Unit	1965		F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 339.
UXBRIDGE Hmlt/Ch/CP	Parish-level Unit	1965		F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 347.
YIEWSLEY Ch/CP	Parish-level Unit	1965		F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 349.
YIEWSLEY AND WEST DRAYTON CP	Parish-level Unit	1965		F. Youngs, Local Administrative Units: Southern England (London: Royal Historical Society, 1979), p. 350.