Hi, Jerry! There are also McDevitts in Co. Donegal. Specifically, there are two former pastors named Mcdevitt buried in the Catholic cemetery at the church in the town of Raphoe. I noticed them because my late brother-in -law was named McDevitt. My brother-in-law's family were at least 3rd generation San Franciscans. I have a niece who is researching that line, and as far as I know she hasn't traced them back to Ireland yet.