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 1818
From The History of Warren County, Ohio (1882)
WILLIAM COX. Jr., farmer; P. O. Mason. The. gentleman whose name heads this sketch is another of the old and prominent citizens of Warren County. He was born on a farm adjoining the one on which he now lives, in the year 1818; he is a son of Richard and Nancy (Irwin) Cox. Our subject’s boyhood was passed in a manner common to pioneer boys, receiving only a meager education in the subscription schools. In 1839, he was married to Susan, daughter of John and Debby Eddy. After this event, they located where they now live, and the only move he ever made was in removing from the old log cabin into his present comfortable house. He presents another proof in favor of stability, and argues that a rolling stone gathers no moss."
Mr. Cox is an unassuming gentleman, and never had aspirations for official honors, yet has been Trustee of his township for a number of years. He and his estimable wife belong to the Presbyterian Church, in which they have held membership nearly a score of years; they are much interested in religious matters, and as Elder he has presided for twelve years; formerly, he was one of the Trustees of the church. To them have been bom eight children, five living, viz., John E., Martha J., Clara, Flora and Lillie; the deceased are Mary A., Richard C. and Elizabeth. Richard C. enlisted, in the winter of 1863-64, in Co. A, 69th O. Y. I., in which he served till the close of the war. Richard Cox, father of our subject, was twice married; by his first marriage, he had two children, Nancy M. Schenck and the subject of this memoir. His second marriage was consummated with Mary A. Huston, who bore him six children, two living, viz., Martha (now Mrs. Bowyer) and Lydia (now Mrs. Cunningham); the deceased are Mary J., James, and two who died in childhood. He (Richard) died in June, 1860, aged upward of 66 years; his second wife died in 1878, aged upward of four score years; his first wife died in 1821. He was a soldier in the war of 1812, serving for several months, and was with the army in a campaign through Canada. He was also one of the Trustees in his township for many years.
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.
Their biographies name William Cox: John E. Cox (b. 1840) Erastus Cox (b. 1837)
The printed record stops around 1882. We trace your line from there down to you, with every source cited.