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 1815, Hamilton county
From History of Johnson County, Iowa, containing a history of the county, and its townships, cities and villages from 1836 to 1882. Together with biographical sketches .. (1883)
DAVID WRAY, (deceased); was born in Hamilton county, Ohio, October 8, 1815. His father, Richard, moved with his family to Indiana when the subject of this sketch was only eight years old, where he was raised on a farm and educated in the common schools. After arriving at manhood he went to Illinois, and while there (December 10,'1840), he was married to Miss Maria Alt, daughter of Jacob and Mary Alt, and sister of Jacob, junior, and Joseph of Penn township. To them were born four children, two of whom are now living: Richard H. and Maria J., wife of Dr. Miller Young. Mr. Wray was among the first settlers in this township. He first settled in Jefferson township, but in 1843 he moved to Madison, in sections 2 and 35, where he follows farming. His first wife died November 5, 1846. He was again married July 20, 1851, to Miss H. Holt of Iowa City. She died March 22, 1869, and on the 22d of September, 1872, Mr. Wray died. He was a man of sound and vigorous intellect'i; a forcible character, and of great personal influence. He has filled the office of county commissioner and of township assessor.
As printed in History of Johnson County, Iowa, containing a history of the county, and its townships, cities and villages from 1836 to 1882. Together with biographical sketches .. (1883). See the original pages. Wording is the original; obvious scanning errors have been corrected, and a few may remain.
Named in this biography: Miller Young (b. 1846)
Their biographies name David Wray: David W. Wray (b. 1848)
The printed record stops around 1883. We trace your line from there down to you, with every source cited.