My brother is over six feet tall. We are of Dutch descent and the Dutch are frequently very tall. 
Oh I didnt know that Dutch people tend to be tall interesing
(around 20% deviation from average) within such a population is sometimes due to gigantism or dwarfism, which are medical conditions caused by specific genes or endocrine abnormalities.
The development of human height can serve as an indicator of two key welfare components, namely nutritional quality and health. In regions of poverty or warfare, environmental factors like chronic malnutrition during childhood or adolescence may result in delayed growth and/or marked reductions in adult stature even without the presence of any of these medical conditions. Some research indicates that a greater height
when he published his first books. He was the oldest of six boys, all over six feet tall, and was himself six feet nine inches tall. Manfred was a third generation Frisian American, whose family originated in the village of Tzum, in the Dutch province of Friesland.
Manfred was raised in the Christian Reformed Church. James Bratt argues that Manfred rebelled against this upbringing, being filled with "religious doubts and ethical chafings." Bratt goes on to discuss this influence that this upbringing had on Manfred's writing