The aim of this study was to examine ratios of burial to baptism, crude birth, death and marriage rates, and to identify years of demographic crisis. Also examined are ratios of male to female baptisms, by months and by years, the ratios of multiple to single births, and of illegitimate to legitimate births. Baptisms, marriages and burials as recorded in the Anglican and Non-conformist registers of nine parishes, Harwich, Dovercourt, Wrabness, Ramsey, Wix, Tendring, Great Oakley, Little Oakley, and Beaumont-cum-Moze. Each individual entry is coded. The code gives parish, type of event, year, month, case number, and type of case. Births as opposed to baptisms are recorded over a shorter period, showing ages at death, occupations, and 'horizons' of communication. Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.