About the course

DNA: Chromosome Mapping with Michelle Leonard


This four hour workshop on Chromosome Mapping is offered in Eastern (US) time. Please remember to convert to your local time. You can convert at this link: https://www.worldtimebuddy.com/

Session 1: 18 June 2024 @ 3 PM Eastern US (2-hour session)

Session 2: 25 June 2024@ 3 PM Eastern US (2-hour session)

The workshop is limited to 30 attendees and will be recorded.  Recordings are available for fourteen (14) days.

All prices are in US dollars.

In stock


Chromosome mapping is a powerful technique that can be used to assign specific segments of DNA to particular ancestors using DNA segment data. If you share a segment of DNA with a known 3rd cousin, for instance, then it is extremely likely that piece of DNA was passed down to you and your 3rd cousin by your MRCAs, your shared 2nd great grandparents, and therefore you can map it back to that couple.

This course will explain everything you need to know to be successful with chromosome mapping from understanding DNA segment data, to populating your chromosome map and using it to help make family history breakthroughs. Michelle will provide in-depth step-by-step guidance on how to create and expand chromosome maps at the number one chromosome mapping website (DNA Painter) and include a plethora of top tips to help you make the most of this special technique. She will also cover how you can supercharge your chromosome mapping power by employing more advanced inferred chromosome mapping techniques and will point out all of the mistakes to avoid so you can stay on track while you map. Chromosome mapping can help you maximise the usefulness of segment data by creating a fantastic reference to use with it and it’s an addictive puzzle; if you like puzzles like Sudoku then you will love chromosome mapping!

What will you learn on the chromosome mapping course?

  • How to understand DNA segment data (this is essential before you can start mapping!)
  • A detailed guide to conventional chromosome mapping
  • An overview of the available chromosome mapping tools
  • Step-by-step guidance on how to create a chromosome map (at DNA Painter)
  • A detailed guide to inferred chromosome mapping
  • Lots of top tips on best practices and pitfalls to avoid.

Book NOW to learn all about DNA’s version of a giant jigsaw puzzle!

Session 1: 18 June 2024 @ 3 PM Eastern US (2 hour session)

Session 2: 25 June 2023 @ 3 PM Eastern US (2 hour session)

About the educator

Michelle Leonard

Michelle Leonard is a Scottish professional genealogist, DNA detective, freelance researcher, speaker, author and historian. She runs her own genealogy and DNA consultancy business, Genes & Genealogy, and specialises in DNA detective work particularly the solving of adoption, unknown parentage and all manner of unknown ancestor mysteries using a combination of DNA expertise and conventional research methods.  She also undertakes traditional family history research, living relative tracing, historical and television research, media consultation, the creation of bespoke family history books, podcasts, article, blog and book writing, tutoring, lecturing, webinars and speaking engagements. She is a regular speaker at major genealogy events such as RootsTech, The Genealogy Show, Family Tree Live, Back To Our Past and Who Do You Think You Are? Live as well as a co-author of Tracing Your Ancestors Using DNA: A Guide For Family Historians which was published in June 2019.

Additionally Michelle is the official genetic genealogist of ancestryhour.co.uk and is one of the hosts of the hour itself: #AncestryHour takes place on Twitter each Tuesday evening from 7-8pm GMT and Michelle is usually on hand to answer any #DNA queries that arise. She also spent several years working on the ground-breaking Fromelles Genealogy Project tracking down appropriate DNA donors to identify WWI soldiers buried in a mass grave in France and served as the Genealogical Consultant on the official Fromelles documentary. She regularly works on new historic soldier cases when battlefield remains are found and DNA testing is conducted.

Michelle holds an M.A. in English and Modern History from the University of St Andrews and a PgCert in Genealogical, Palaeographic and Heraldic Studies from the University of Strathclyde. She is a member of the Association of Professional Genealogists (APG), the Scottish Genealogy Network (SGN) and the International Society of Genetic Genealogy (ISOGG). You can find out more about Michelle on her Genes & Genealogy Facebook page and you can follow her on Twitter.