To my knowledge, they were from Donegal. We have the family traced back to the mid to late 1700's in the southwest part of Donegal.
But I talk to several Quinns who are in Tyrone who feel we have a connection. Our general theory is confusing, but seems plausible. Under the rule of King Niall and his descendants' rule, most of the family was located in Tyrone. There were many who were also in Donegal. They basically pretty much were everywhere in that area.
Time goes on, and the families separate into distinct modern branches. But we are thinking that a branch that was located in Tyrone may have broke off and relocated in Donegal, near other family. This separated this one branch even more. And this is probably my branch.
So, don't write off that we may not be connected. Fact is, go back far enough, and we are. It's just a matter of finding that missing link.
Feel free to drop me a line. I spend most of my life tracing Quinns, and we could have a closer connection than we think!