Kathryn Johnston M.D. has been actively studying genetic genealogy since 2004. She wrote the chapter, "X-DNA Techniques and Limitations" for the book, Advanced Genetic Genealogy: Techniques and Case Studies. Editor Debbie Parker Wayne, Wayne Research, Cushing Texas. 2019.
Offering in-person, 15-minute expert consultations for registered attendees in the following areas:
Tips for budding genetic genealogists