The Ken Bowen webpage states that she married John Huff and remained in North Carolina, and this seems the most likely.
I am also not sure that Charity's husband John has been placed correctly as a son of Ann Pike, though it is likely his father was a Daniel Hough.
There is a marriage listed in the Tennessee State Marriages - names are indexed wrong much of the time. This is a Benj. Wilson to "Charlotte" Adamson, 6 Aug 1818. Charity would have been about age 40 - I doubt this would be her marriage. It's also possible she was not this age - I've found no basis for the order, nor births of the children of Jesse Adamson.
The Deep River MM records [Guilford Co NC] contain several entries for Hough. From these it can be determined that a Daniel and Elizabeth Huff were received by request in 1782, along with children John, Daniel, Jess, Mary, Jemima, Martha, Anne & Keziah. A William and Mary Hough were also received by request - Mary had to get her certificate from Buckingham MM in Pa. William and Mary Hough had children, Israel, John, Jonathan, Sarah, Charlotte & Mary. Note that both Daniel and William's families contained a John. Neither Daniel nor William had a wife named Ann - to be Ann Pike - of course either could have married more than once.
A John Huff also married, 11 Jun 1829, Stokes Co NC to Martha Hicks. The 1830 census indicated he had a much younger wife. But there was also a John Huff Jr with spouse and children in the 1830 census, Stokes, Co.
Charity ADAMSON and John HUFF were married before 1794. John HUFF, son of Daniel HOFFE/HUFF and Ann PIKE, was born in 1773 in North Carolina. He died in 1842 at the age of 69 in Stokes County, North Carolina.
1800 Census. Salisbury, Surry Co NC [Stokes would be formed from Surry]
1810 Census, Salem, Stokes Co, NC [no Daniel Huff remained in NC - John was the only Huff in Stokes]
By 1820, no Huffs were found in Surry Co and only John Huff in Stokes:
In 1830, there were three Huffs in Stokes:
1840 - Jesse and a John were still in Stokes Co
I did find in 1850, Wayne Co, IN, New Garden
Charity ADAMSON and John HUFF had the following children:
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