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 1851
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)
L. C. DONNENWIRTH, New Washington, was born in New Washington, Ohio, Aug. 11, 1851. His parents were Hon. George and Caroline (Durr) Donnenwirth. The main history of the family will be found in the biography of Hon George Donnenwirth, of Bucyrus Township. When 6 years old, our subject, together with his parents, moved to Bucyrus, where he remained until 18 years old. He then apprenticed himself to Jacob Seifert to learn the blacksmith's trade. After about two and a half years, he mastered the trade, and then, for one year, assisted his preceptor. Mr. Seifert died at the end of that time, and our subject, with his half-brother William, continued the business. In 1877, he commenced blacksmithing by himself in New Washington, and as such has ever since continued. Mr. Donnenwirth is considered one of the best disciples of Vulcan in the town. On May 1, 1873, he was united in marriage with Miss Ellen Guiss, daughter of Christian Guiss, and to them were born two children— William A., born Oct. 7, 1874, died Jan. 1, 1877; Annetta J., born Feb. 24, 1880. Mrs. Donnenwirth was born Aug. 22, 1853. Mr. Donnenwirth is a member of the Lutheran Church, and is a Democrat in politics. He has held the position of City Clerk since 1874, and Township Clerk since 1877. Mr. Donnenwirth is an enterprising and industrious young man, of good morals and good character.
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.
The printed record stops around 1881. We trace your line from there down to you, with every source cited.