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Demographic Limits Of Nineteenth-Century Mormon Polygyny, Val Lambson, Davis Bitton

BYU Studies Quarterly

What percentage of nineteenth-century Mormons practiced polygyny? Estimates of the answer have evolved as have the methods of posing the question. The authors use a simple demographic model to derive mathematical limits on polygyny prevalence. These limits provide benchmarks from which to assess whether polygyny prevalence in a given context is high or low compared to what is sustainable. If prevalence is high, the model may suggest where to look for reasons. Furthermore, where data are of low quality, the benchmarks provide a check on the reliability of the reported prevalence.

Many factors—such as differences in marriageable age, mortality, population …