To Rick in N America I am descended from Robert Duff of New Noth near Rhynie who was gggg/g'son of Adam's 4th son George of Edindiach. You are correct there were far more females and in my case my father James was an only child and his father also James was one of 2 sons 5 daughters and his brother was a bachelor. I have one sister and one son who has 2 sons. regards James Duff (born Scotland , visited Gartly many times and now living in Australia)