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 1847
From The History of Clark County Ohio, (1881)
JOHN B. DUNKEL, merchant; P. O. Enon. Among the representative business men of Enon we mention the name of John B. Dunkel as a grocery merchant. He is a son of John and Elizabeth Dunkel, and was born Nov. 20, 1847; obtained his education in the common schools, and remained his father's assistant on the farm until 1870, when he married Rebecca, daughter of Reuben Shellabarger, whose biography appears in this history. After his marriage he followed farming one year, then located in Enon, where he purchased a large grocery store, carrying a full line of goods, and through his correct business habits has established a reasonable patronage and obtained the public feeling of the citizens of his township, until he now holds the office of Treasurer of said township, which he fills with honor and credit to himself and party. One child, Clara May, has been given to this union, born Nov. 2, 1873.
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.