Consanguineous Marriages in the American Population

A pioneering early 20th-century scientific inquiry into one of American society's most sensitive topics. George B. Louis Arner undertook what few had attempted before: rigorous statistical investigation of consanguineous marriages across the American population, drawing on genealogical records and isolated community case studies to examine patterns that had previously escaped systematic documentation. The monograph represents a moment when scientists were first applying quantitative methods to questions of heredity, public health, and social fitness, frameworks that would later be subsumed into the emerging field of genetics. Arner acknowledges the fragmented nature of his data and calls for comprehensive governmental census efforts to fill the gaps, making this not only a historical document but also a snapshot of scientific methodology in transition. For readers interested in the history of science, the evolution of genetic thinking, or early American sociology, this monograph offers a fascinating window into how turn-of-the-century scholars grappled with heredity and social anxiety.