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 1830
From The History of Clark County Ohio, (1881)
A. P. LINN COCHRAN, attorney, Springfield; is a native of Pennsylvania, born in Cumberland County June 27, 1830. He received his education at Princeton College, from which he graduated in 1856. and, in the following year came to Springfield, where he entered the law office of Rodgers & Cochran, the latter being a brother; subsequently graduated at the Cincinnati Law School, and in 1859 formed a partnership with his brother, David M. Cochran, which partnership existed until the death of David M.. in September, 1870, after which the subject continued practice alone until the present partnership with Robert C. Rodgers was formed, in 1877, since which the firm name has been Cochran & Rodgers; their office is located in the block on the southeast corner of Main and Limestone streets. Mr. Cochran was a member of the 152d O. N. G.; is a Republiean in politics, but has never taken an active part in public matters, nor sought official distinction, preferring rather to pursue the regular line of his profession, and has established a valuable reputation as a lawyer and citizen. He married, Sept. 17, 1868, Miss Pearle A. B. Wilbur, of Cincinnati; this union has been blessed by four children, three of whom are living—two sons and one daughter; his residence is 301 South Limestone street.
As printed in The History of Clark County Ohio, (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.