I was unable to find out any more information on Nancy Corbin.This is the information that I found.You may have some of it already.
Nichols, William married Corben, Nancy [Winters] 13 Jan 1842 bu Hugh Miller-Justice of Peace (pg 112-264r of the original book) Source:Knox County Marriage Records 1808-1875 Pg 58
Wealthy Nichols married William Hall 28 Feb 1869 by Benjamin Bell-minister (orginal record 78) Source:Knox County Marriage Records 1808-1875 pg 182
Child of Wealthy Nichols and William Hall: (male) 30 Feb 1872 BK 1 pg 72 Jackson Twp Source:Birth Records of Knox Co. Ohio 1867-1908 pg 117
Child of Wealthy Nichols and William Howell: **Not sure if this is a misprint or different men*** Addie May Howell (rec) 31 Mar 1870 Bk 1 pg 22 Jackson Twp Source:Birth Records of Knox County, Ohio 1867-1908 pg 137
Sara Maria Nichols married Christian Horn 4 Nov 1847 bu Jas Myers-Justice of Peace (original record 280-57r) Source: Knox County Marriage Records 1808-1875 Pg 89
William Nichols d: 10 July 1859 age 39yrs 11m 29d row 8 Mt. Zion, Jackson Twp Source: Cemetary Records of Knox County, OH Volume 2 pg 548
Calvin L. Nicholls b. 1855 d. 1930 buried with wife Margaret Ellen b. 1856 d. 1932 Source:Cemetary Records of Knox County, OH Volume 1 pg 247
the 1880 Census index has two Nancy Nichols listed.I don't have access to these counties.
Licking County, Newark Ward 2 pg 395A on census record. Source:1880 Census Index pg 2122
Clinton Count, Wilmington pg 195B on census record. Source:1880 Census Index pg 2122
There is also listed a Calvin Nichols on page 2121 of the 1880 Census Index in Knox County, Jackson Twp on pg 207C