Isabella C. Campbell, as calculated from the inscription on her gravestone, was born on the 31st of March 1796, in Lincoln County, Kentucky of parents Joseph Campbell and Sarah [Givens] Campbell. Joseph Campbell was a soldier of the Revolution from Virginia. She had five sisters and three brothers. One of her sisters, Mary, who was called “Polly”, married James McClure and was living in a two-room log cabin in Tazewell County, Illinois prior to the arrival of Isabella and her family in October of 1830.
She married Richard Blythe McCorkle in Wilson County, Tennessee on the 10th of January 1811. Thomas Hobbs, husband of her younger sister, Sarah [Sally], was the bondsman. John Allcorn, who lived on Barton’s Creek near Lebanon, in Wilson County, performed the ceremony. From the date of birth calculations from her tombstone, it suggests that she was fourteen years and nine months of age at the time of her marriage. In about 1847 Ibby [as she was called by her husband], her husband, her youngest son, William, and her two youngest daughters, Elmira and Rhoda Louisa, moved west across the Illinois River to Peoria, where they lived for a few years. They returned to Washington sometime after the 1850 census. Her husband passed away in 1854 in Washington, Illinois. She died on the 7th of January 1873, while she was living with the family of her eldest daughter, Mrs. John Henry Johnson. She lived on this earth seventy-six years, nine months, and seven days. She was buried beside her husband in the Baker Cemetery of Washington, Illinois.
https://www.geni.com/people/Isabella-McCorckle/6000000022644104185