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 1825
From History of Morrow County and Ohio : containing a brief history of the state of Ohio ... a history of Morrow County ... biographical sketches, portraits of some of the early settlers and prominent men, (1880)
JACOB MILLER, Jr., farmer; P. O. Shaucks; born in Cumberland Co., Pa., Sept. 2, 1825, and is a son of Jacob Miller, who was born March 17, 1792, in Lancaster Co., Pa., whose wife was Catharine Cassel, born in Dauphin Co., Pa., in 1792, and died April 30, 1878. The family emigrated to Richland Co. when Jacob, Jr. was 5 years of age, where they remained until 1841, when they moved to Congress Tp., and became permanent residents. At the age of 23 Jacob was married to Mary J. Wright, who was born in Richland Co. Jacob’s father was a wagon-maker by trade, which business he followed for eight years; after this he engaged in farming. Jacob has now a good farm, consisting of 168 acres. Their children’s names are Jason, Asa, Mary A., Yirda and Zenis. His wife and Mary A. are members of the Disciple Church.
As printed in History of Morrow County and Ohio : containing a brief history of the state of Ohio ... a history of Morrow County ... biographical sketches, portraits of some of the early settlers and prominent men, (1880). See the original pages. Wording is the original; obvious scanning errors have been corrected, and a few may remain.
Their biographies name Jacob Miller: Jason Miller (b. 1849) Joseph Doty (b. 1816)
The printed record stops around 1880. We trace your line from there down to you, with every source cited.