Even thorough research can miss relevant sources. What are the options when useful information or DNA test results appear after a researcher establishes a conclusion?
Tom Jones is an award-winning genealogical researcher, writer, editor, and educator. He has co-edited the National Genealogical Society Quarterly since 2002, and he is the author of the textbook Mastering Genealogical Proof. He has been certified by the Board for Certification of Genealogists since 1994. A professor emeritus at Gallaudet University in Washington, D.C., Tom teaches genealogical research methods at week-long genealogy institutes. He speaks at national, regional, and local seminars in the United States and internationally, and he writes frequently on genealogical evidence, proof, and problem solving.