My beautiful granddaughter is a red head. Her mother's father is of Scottish descent and her mother's mother is Tlingit indian. Her great grandmother on dad's side was an auburn-haired Irish gal. Sooo, who does she take it after? I think the indian genes are suppressed here.
My mother-in-law is very short, dark skinned, with black hair and dark eyes (Gypsy) and all of her grandsons (my boys) are tall, fair and red-haired. You would never guess they are related to her.