Draft 12 January 2023 “Who your distant cousins think your ancestors are” An experiment to unmask and suggest Common Ancestral lines for single surnames using distant shared DNA Matches of a DNA testing platform. We create an encoding technique on the family trees of Identity by Descent (IBD) DNA cousins with a 20-count frequency to suggest an ancestral line. This experiment is conducted based on multiple thought experiments resulting in an experiment to reverse the perspective normally used to consider and evaluate individual DNA results. It is conducted using the results provided by Ancestry.com which are well defined in these white papers: Genetic Communities ™ and DNA matching . If successful, it would be an incremental advancement in method and useful to consumers. This experiment will cause the creation of an encoding scheme to help in organizing and interpreting results. This will be a manual system using Microsoft Excel spreadsheets primarily in recursive