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 1829
From History of Crawford County and Ohio : containing a history of the state of Ohio, from its earliest settlement to the present time ... a history of Crawford County ... biographical sketches, portraits (1881)
JOHN HEINLEN, butcher. Bucyrus; is the son of Lewis and Rachel Heinlen. He was born in Pickaway Co., Ohio, on July 29, 1829, and remained a resident of his birth-place until the age of 2 years, when his parents removed to Crawford Co. and settled in Whetstone Township. There young Heinlen grew to man's estate, and received such advantages in schooling as the newness afforded. At the age of 20 years, he began working at the carpenter's trade, which he followed for three 3-ears, and then gave it up and turned his attention to farming. He was probably induced to make this change through the gift of 50 acres of land from his father, which was situated in Bucyrus Township. This he afterward sold, and then bought a number of acres in Whetstone, where he resided for two 3'ears, and then sold out and removed to Marion Co., where he resided near the town of Three Locusts for twelve years. In 1867, he again became a resident of Crawford Co. and Whetstone Township. In two years, however, he again returned to Marion Co., but, in a couple of 3-ears, he again came to the old township of Whetstone, where he now owns a finely-improved farm of 200 acres, and where he still resides. In 1878, he rented the meatmarket of J. R. Miller, of Buc3-rus, where Jlr. Heinlen is now doing business, though he still runs his farm. July 6, 1851, he was married to Miss Eliza Winters, of Winchester, Crawford Co. They have seven children living, named as follows: Andrew J., Henry S., Amanda, Lavina L., James, William and Charles; those deceased rr were Samuel and Mary. Mr. Heinlen and his wife are both members of the M. E. Church and have, for many years, been classed among the honorable and reputable class of the community.
As printed in History of Crawford County and Ohio : containing a history of the state of Ohio, from its earliest settlement to the present time ... a history of Crawford County ... biographical sketches, portraits (1881). See the original pages. Wording is the original; obvious scanning errors have been corrected, and a few may remain.
Named in this biography: J. R. Miller (b. 1861)
Their biographies name John Heinlen: Jacob R. Miller (b. 1839) Lucy Rogers
The printed record stops around 1881. We trace your line from there down to you, with every source cited.