I was actually doing research for another post related to the Korean giant that I saw recently when I encountered a very interesting article from a post on a forum

source #1: http://www.eastbound88.com/showthread.php/15281-Family-of-giants-in-Bac-Lieu-southern-Vietnam

source #2: http://haysao.net/chuyen-la/mot-gia-dinh-co-toan-phu-nu-cao-tren-2-met.html

source #3: http://www.xaluan.com/modules.php?name=News&file=article&sid=624625

It seems that there is a family of native vietnamese in some village in south vietnam which has extremely tall stature for nearly all of its family members.

From the actual article...

Mrs. Tran Thi Lang, 62 who is oldest child in her family is 2 meters tall. She said her father was a very tall man who was over 2.20 meters tall. Her father married her mother (who is of average height) and gave birth to 8 children who all grew up to be very tall (around 2 meters and up). Her tallest brother was over 2.20 meters tall, but he didn’t live long due to sickness. Her second tallest brother is 2.17m tall and still alive.

Mrs. Tran Thi Lang herself married an average man and has 8 children of which 4 are tall like her, the other 4 are of normal height like their father.

….Mrs. Tran Thi Lang’s second tallest brother, Nguyen Van Trinh who is 2.17 meters tall, standing with his wife.