In the book's own words, not ours, with obvious scanning errors fixed. Families often supplied these stories to the publisher, so check key dates.
Born 1831, Ray county
From History of Ray County, Mo. (1881)
AMBROSE YOUNG.
Ambrose Young was born in Ray county, Missouri, on the 16th day of May, 1831, and has always been a resident of his native county. He was educated in the common schools, often walking the distance of four or five miles to reach the school-house, and frequently not reaching home on his return until long after dark. Mr. Young lived on the place that his father settled until his marriage. He was married on the 29th day of September, 1853, to Miss Frances Graham, daughter of William Graham, Esq., a resident of Carroll county. Five children were born to bless this union; three boys and one girl are yet living. Odus G. Young, the eldest son, is a practicing attorney-at-law in Carrollton, Missouri, and Alonzo F., the second son, is in charge of his father's farm, both doing well. Mr. Young is a member of the A. F. & A. M. Lodge at Millville, and both himself and his wife are members of the M. E. Church South at that place. He was for three years postmaster at Millville, and was also, during the same time, engaged with Fletcher Graham in merchandising there. His fine farm of three hundred acres of good land lies two and a half miles south of Millville, on the Richmond road.
As printed in History of Ray County, Mo. (1881). See the original pages. Wording is the original; obvious scanning errors have been corrected, and a few may remain.
The printed record stops around 1881. We trace your line from there down to you, with every source cited.