The R-S20123 Group Project is a Big Y study for a specific Park(e)(s) family with known roots in England, Scotland, and North of Ireland (Ulster). Several of the participants have Park(e)(s) lineages that migrated to North American during the early 18th century and later. The SNP R-S20123 is representative of the ancestor in common to all of the participants in this study, who may have been born about 1500 based upon FTDNA estimates. Our project goal is to analyze and compare our SNP test results to our documented lineages which currently extend back to the late 17th century in England, Scotland, and North of Ireland (Ulster).