Donald Lines Jacobus

Donald Lines Jacobus, FASG (1887-1970) of New Haven, Connecticut, is widely recognized among genealogists as a prominent figure in American genealogy.

In his publications and teachings, Jacobus underscored the significance of employing a scientific approach to utilizing primary sources in genealogical research. This shifted the focus away from reliance on oral traditions and unquestioned acceptance of longstanding pedigrees as factual solely based on their age. Jacobus established foundational principles for proper documentation and citation that are now considered essential for all genealogists. While Jacobus expressed support for the concept of eugenics, he noted its limitations in accurately tracing bloodlines. He also highlighted the lack of experience among proponents of the field in genealogical research and methodology.

He founded the ''New Haven Genealogical Magazine'' in 1922, which later evolved into ''The American Genealogist'' (TAG) a decade later. Jacobus held the positions of editor and publisher of the periodical for 43 years, until 1966. Provided by Wikipedia