Milly Vaughn is 30-39 in the 1830 Franklin, Tennessee census as a widow with 12 children. The name is misspelled as Vawn. She is living next door to David Austin.
She is in the 1840 Jackson, Alabama census with 7 children. Her age is marked 50-59 but I think that was a mistake.
She is listed in the 1850 Jackson, Alabama census with 1 child John. Her age is listed as 50, which would show that the 1840 census was marked wrong. I also believe that John should have been marked as born in Alabama, seeing as how all her older children were born in Tennessee and her younger children were born in Alabama.
She is then listed in the 1860 Jackson, Alabama census with 2 grandchildren.