Many DNA testing laboratories are advertising ethnicity or ancestral population percentages for participants – but how are those figures calculated? Why are there such differences in the results from one company to another? This presentation provides insights on how these percentages are derived. Ancestral Percentages here meaning Biogeographical Ancestry (BGA) defined as an estimation of […]
The online tools for making new genealogy discoveries about your ancestors from Ireland have increased radically in the past five years thanks to DNA sampling of modern Irish residents and digitization of surviving paper records. This presentation will provide an orientation on how you can use these new resources to make breakthroughs in researching your […]