Redheads in Ireland are a distinct minority. Take one hundred people from Ireland and ninety-two will have brown or black hair, six will be blondes, and two will have red hair.
Thank you.
-All- of the Irish in my family are dark haired and gray-blue or brown eyed.
My auburn hair and green eyes came from the Welsh side.
I would imagine that my mother’s Danish genes “flipped a switch” and caused recessive genes to appear in me even though my sister is a brunette with gray-blue eyes.
At the same time that hair you dismiss as BROWN is most likely a consequence of its exhibitor leading a mostly indoor life AND still having the red/yellow, or red/brown pigment gene!
Humanity has TWO COLORS ~ one is red/brown (pop. 200,000,000) and the other black/brown (pop. 6,800,000,000).
You can't miss 'em.
Everything else is handled by the contrast control or raster rate!
I didn't realize that redheads were so rare in Ireland. My grandmother on my mother's side was blue eyed with auburn hair and the surname of Kelly. She married my grandfather, a dark eyed, dark haired man of french descent, in the city of New Orleans. Of course, as it happened all of their children were dark eyed brunettes who looked french. Sadly, no redheads of any sort in the family since then.