Descendants of William Throope, 1666 in Barnstable MA, are invited to participate. Descendants of Throope families in England are also invited. Since this project began, testing has advanced so the now the original haplogroup of I1a for Throop is now described by the hapogroup I [Nordic] and the terminal SNP Y22923 See https://www.yfull.com/tree/I-Z2336/ for the tree which includes Y22923