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About us

This FTDNA Project is devoted to works in Genetic Genealogy concerning the descendants of Sir John Stewart "of Bonkyll".
All Patrilineal descendants of this medieval Stewart have the mutation known as SNP S781. 

This project is focused on works concerning Y chromosome.

The goal of these groups is to identify new Y-SNPs that can restore links between families that have been separated for many generations.

If you want to order SNP S781 test, login to your MyFTDNA account and:

  • Click ORDER AN UPGRADE in the upper right corner.
  • Click ORDER AN ADVANCED TEST, select SNP from the Test Type menu and type S781.
  • Click FIND, ADD, ORDER NOW, etc.

More info about SNP S781 on