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 1840, Chester 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)
ENOCH WILLIAMS, farmer. Cedar township, post-office, Solon; was born in Chester county, Pennsylvania, July 8, 1840, where he spent his boyhood days, and is a son of George and Mary Williams. In the spring of 1856 they emigrated to Iowa and settled in Johnson county, where he has since resided, and now owns 160 acres of well improved land. He was married February 7, 1867, to Mary S. Sutliff, daughter of Allen C. Sutliff, one of the pioneers of Johnson county. By this union there are five children now living, viz.: Allen G., Ellen G., Kate S.. Jesse E., and Ralph E.
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.
The printed record stops around 1883. We trace your line from there down to you, with every source cited.