@12boy, he's part right. It's only the males that can be called a Yorkshireman.
And even then you'd have to be born within the Yorkshire boundary.
This includes those affected by the theft on the 1st April 1974*, when they moved The County boundary, and woke up on the wrong side of the new County line. This also means that there are a few from the Red Rose County, now in Yorkshire that never will be Yorkshire.
Correct, non gender specific title, for those born within the boundary is Tyke. This term does not apply to those who move into The County.
Missen, Yorkshire born n'bred, buttered in Ireland.
*We will one day reclaim, that which was taken from us on this day.