The majority of my husband's results have the name Crawford (ranging from 2-4 steps). Several Hastings/Hastie, etc. members I have spoken with have similar results. I contacted the Crawford matches over the winter and they are mystified, too. One Crawford said the I1 haplo lead him to Crawfordjohn, Scotland. His ancestors came to Ontario in 1840 from Ireland, (my husband's came to New Brunswick from Ireland about the same time). He directed me to the clancrawford.org website.
Has anyone else discovered a connection between the Hastings/Hastie/Hasty/Heasty's and the Crawford's?