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 1819
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)
JOHN GARDNER, farmer; P. O..Mt. Gilead; was born in Franklin Tp., Knox, now Morrow Co., May 1, 1819. In 1825, his parents moved to Richland Co., and located about four and one-half miles northeast of Mt. Gilead; he lived at home 22 years, then, in company with his brother-in-law he farmer a place belonging to his father, and located near West Point. Dec. 29, 1842, he married Miss Harriet Carr; she was born in Richland Co., Ohio, April 17, 1821; they occupied a house on the farm, and with his brother-in-law, continued farming the place, until 1850, in the fall of which year his father died, and the following year he bought the old homestead farm, which was entered by his father about 1822, and occupied in 1825; he farmer the place for three years, and then sold the same and bought his present place, and has lived here since. By his marriage there are four children — Quincy T., born Feb. 16, 1844, and married Miss Lvdia Truax, of Elkhart Co., Ind.; he is-farming his father’s place; of their three children two are living — Eliza and George; Eunice, now Mrs. Bargar, born May 22, 1846, and lives in this vicinity; they had three children, two living — Melville and Zoa; Mary E., now Mrs. Iden, born Nov. 4, 1848, and lives in Denmark Co.; Albert C., born March 30, 1856, and lives near Denmark. Mr. Gardner resides on his farm, which contains seventy-five acres, and is located three and one-half miles northeast of Mt. Gilead. He has served in the offices connected with the school and road, also as Township Trustee. His parents, Timothy and Sarah (Hawkins) Gardner, were natives of New Jersey and Vermont; they were married in Knox Co., Ohio, where she came with her parents, and he when a young man; they settled here in Morrow Co. in 1825, and lived here until his death, in 1850; she lived on the old homestead until the sale of the same; she then moved to Minnesota, and later she went to the State of Maine, and lived with her son William until her death, March 17, 1873. They had eight children, six of whom are living. Her parents, Thomas and Sarah (Crosby) Hawkins, were natives of Conn, and New Jersey; Mrs. Harriet (Carr) Gardner’s parents, David and Sarah (Fisher) Carr, were ‘natives of NewT Jersey; they came to Richland Co., Ohio, he in 1816, and she in 1820; they married there in 1820. He died there Feb. 2, 1875; she is living on the old place where she has made her home for the past sixty years; of their eleven children, eight are living, all but one of whom are married.
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 John Gardner: Reuben Gardner (b. 1820)
The printed record stops around 1880. We trace your line from there down to you, with every source cited.