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 1851, Turtle Creek Township
From The history of Warren County, Ohio .. (1882)
CORNELIUS H. NIXON, farmer; P. O. Clarksville, Clinton Co.; was born in Turtle Creek Township, May 2, 1851, and is a son of Samuel and Mary A. (McClain). He was reared on a farm and has always followed its pursuits. He was married Sept. 16, 1875, to Miss Isabell Harlan, daughter of Alexander and Ann Harlan, born in Washington Township, June 9, 1857; Anna H., their only child, was born Aug. 6, 1876. Mr. Nixon located on his present farm in the spring of 1876; he owns 56 acres of land. Politically, he is a Republican.
As printed in The history of Warren County, Ohio .. (1882). See the original pages. Wording is the original; obvious scanning errors have been corrected, and a few may remain.
The printed record stops around 1882. We trace your line from there down to you, with every source cited.