NGS Books

Mastering Genealogical Proof

Mastering Genealogical Proof  teaches family historians and genealogists how to reconstruct the relationships and lives of their ancestors. Readers learn about the fundamentals of the Genealogical Proof Standard (GPS), what genealogists mean by “reasonably exhaustive” research, the basics of citing sources, analysis, problem-solving, and more. Content is presented in digestible chunks. Each chapter concludes with problems providing practice for proficiently applying the chapter’s concepts. Those problems—as well as examples throughout the book—use real records, research, and issues. Answers are at the back of the book along with a glossary of technical terms and an extensive resource list.

Mastering Genealogical Proof is available for purchase in the NGS online store in print or as a Kindle e-book at Amazon.


Thomas W. Jones, PhD, CG, FASG, FNGS, FUGA, is the author of Mastering Genealogical Documentation and an award-winning genealogical researcher and educator. He has taught at Boston University, the Salt Lake Institute (SLIG), the Genealogical Research Institute of Pittsburgh (GRIP), and elsewhere. Since 2002 he has co-edited the National Genealogical Society Quarterly.