John McConnell Cook was born in 1808 in Blount County, TN. Nancy was born in 1810. They were married there in 1829. By 1850 John and Nancy are residents of Cass Township in Green County, Missouri where they are farmers. Nine children live with them with a tenth to be born in 1854. They remain in Missouri over the next 20 years though they move between townships. Then John M. Cook is said to be buried in 1888 in Jackson County, Oregon. Nancy died in 1880. Their travels between Missouri and Oregon probably followed those of their children.