The technique of family reconstitution is used to analyze social demographic and familial changes among some 8000 Quaker families in Great Britain and Ireland over the period 1650-1900. The authors "show how Quaker religious values delayed marriage and the evidence suggests that in the seventeenth century English Quakers practiced family limitation although their Irish counterparts by contrast became one of the most fertile of all demographic groupings. Severe urban mortality was the fate of many urban Quakers prior to 1750 but sanitary improvements seem to have reduced this and from 1825 onwards the Quakers were in the vanguard of the move toward the small modern family." (EXCERPT)
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