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 1798
From The History of Clark County Ohio, (1881)
FREDERICK KOBELANZ, deceased. The gentleman whose name heads this sketch was born in Enckedorf, North Prussia, Oct. 18, 1798, of Polish origin; was educated in his native place, and there married to Mary M. Hackman, to whom was born Anna Mary, now the wife of Herman L. Riesau, of Springfield Township. His wife died in the spring of 1834, and in the fall of the same year he married Margaretta M. Duhme, and soon after his wedding they embarked for America. Frederick and family lived one winter in Buffalo, and, in May, 1835, came to Springfield, Ohio, where he engaged in the stone and lime business, remaining two years: then moved to St Louis, Mo., where they lived one winter, and returned to Springfield. He began dealing in stone and lime, in which he was very successful, and which he followed some six years, In 1846, he purchased a farm of 96 acres, north of the city of Springfield, upon which he settled and continued to follow farming the balance of his life. His second wife, Margaretta M. (Duhme) Kobelanz, was born Jan. 2, 1800, and had born to her seven éhildren, four sons growing to manhood, viz., Frederick W., Christian F., John H. and Herman L.—the second of whom since died at the old homestead. To his first purchase of 96 acres, Mr. Kobelanz added, year by year, until he was the owner of nearly 500 acres of the finest land of the county. Politically, he was a Democrat, yet he was a man conservative in most things, and his life was marked by fairness and upright dealing with all men. In early life, he belonged to the Lutheran Church, and, for about thirty years previous to his death, was a member of Clark Lodge, No. 104, A., F. & A. M. He began business in Springfield on a capital of $2.123, but, through industry and strict economy, he attained financial success; he was a man of vigorous, determined character, prompt, shrewd and observing throughout his business career, and left to his family at his death— which occurred Nov. 24, 1880, his wife having died ten years previously—a handsome estate, as well as a name and character above reproach.
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.
Their biographies name Frederick Kobelanz: John H. Kobelanz (b. 1839)
The printed record stops around 1881. We trace your line from there down to you, with every source cited.