A History of the County of Chester: Volume 5 Part 1, the City of Chester: General History and Topography. Originally published by Victoria County History, London, 2003.
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APPENDIX: MIGRATION TRENDS IN THE CHESTER REGION, 1801-1911
This appendix outlines the methods used to derive estimates for net migration trends in the Chester region over the period 1801-1911. Estimates before 1851 (Table 24) are more tentative in view of the lack of statistics for births and deaths within the region. The natural increase of population in Cheshire between 1801 and 1831 has been estimated as 12.7 per 1,000. (fn. 1) That rate was applied to the population of Chester and its suburbs, subtracting the actual population increase to calculate an estimate for net migration in each decade.
Estimates for the period 1851-1911 (Table 25) have been derived from data for Chester registration district, which covered more than the city and its suburbs, including the rural hinterland, the Deeside industrial belt, and part of Ellesmere Port. The registration district was standardized on its 1871 boundaries, excluding Ellesmere Port, and the natural increase of population was calculated from the number of births and deaths recorded in the decennial census, allowing for possible under-registration. (fn. 2) For each decade the natural increase was apportioned pro rata between Chester and other parts of the registration district, and the figure for Chester was then subtracted from the actual decennial population change to calculate the net migration balance for Chester.
Emigration overseas probably formed a large element in migration trends from the Chester area after 1850, and two methods have been used to estimate its extent (Table 17). Estimate 1 involved using the figures for net emigration from England and Wales as a whole, (fn. 3) reducing the gross figures of emigrants by 39 per cent to allow for those who returned from overseas. (fn. 4) Overseas emigration from Chester was estimated by applying the national rate each decade pro rata to the population of the city and its suburbs at the start of the decade and subtracting the result from the estimate of overall net migration. The residual balance of regional migration for Chester and suburbs thus omits emigrants overseas.
Estimate 2 is an alternative and probably sounder estimate of emigration from Chester, based on more detailed figures of emigrants by county of birth. (fn. 5) The estimate for Chester is based on the average for those born in Cheshire, Denbighshire, and Flintshire, which themselves varied markedly.
Source: See text.
The two estimates differ but show similar trends. Although they must therefore be used with caution, they suggest the possible significance of overseas emigrants within Chester's wider migration pattern.
Note: Using 1871 boundaries for registration district, excluding Ellesmere Port.
Source: See text.