Who was Donald Lines Jacobus, and why should you care?

Genealogy Connect

By Joe Garonzik

The Connecticut genealogist, Donald Lines Jacobus (pronounced ja cob’ us), was the founder of the modern school of scientific genealogy and the greatest American genealogist of the 20th century. Jacobus and his protégés taught us how to research and write family histories, how to solve genealogical problems, what sources should be used, how to interpret them, and why we must abandon unsupported findings which, in many instances, were built upon flights of imagination as much as on facts.

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