Mourning Stone was the daughter of Thomas Stone and his wife Alexandra Brown. She was born about 1725 in Williamsburg, Virginia.
She married Ambrose Mills about 1745. They first settled on the James River in Virginia. They had several children, the oldest being William.
The family moved to the wild frontier of South Carolina at some point.
Mourning and all their children except William were killed at Pine Tree Hill, Camden, South Carolina by Cherokee Indians during the French and Indian war of 1755-61. William was with his father at the time.