I am 5'11" with light brown hair with a bald patch on the crown just like my my old man. At 56 years of age i'm getting a bit thick around the middle. My old man was only about 5'6" with light brown hair and blue eyes. my younger brother is also about 5'6" with the same hair and the same shortage of cover. His son is over 6' with dark brown hair and blue eyes. My son is 6'3" with light brown hair and blue eyes.
hope this helps. Maybe the next stage would be to exchange photo's of Bucknells