Sarah Dornbush

Sarah Dornbush married Johiel Calvin Dalton in McDowell Co., Old Fort, NC. Joiel Calvin was a Confederate Soldier captured and taken to Chicago Prison, died from exposier and was buried in a mass grave. Sarah married a John Davis and also have all the information where she drew a widows pension from the Civil War. I cannot find her birth mother and father. I have searched many sources and conversed with many people, but to no avail.
If anyone has any information, I would greatly like to share with you.