Sarah Freeman, b. abt. 1839 Person Co., NC

We have a Sarah Freeman in our line. I have not been able to locate anything about her. Her mother was Matilda Freeman, b. abt. 1839, and Sarah was born abt. 1865 in Person Co., NC. When did your Sarah marry?
In the 1880 census Matilda Gravet was listed, age 44, widowed, and her four daughters last names were recorded as Freeman. Matilda Freeman was the d/o George Freeman and Jane (Unknown). Sarah was the d/o William H.O'Briant and Matilda Freeman.
I hope we can exchange family information.
Joanne O'Briant