Rebecca Box-Gideon Lewis 1850's AL

Still looking for any info on Rebecca A. Box born about 1835 in AL, married Gideon Lewis in Monroe Co MS in Feb 1854.They had 7 children with the last, my grandfather, born in 1870.She died soon after, about 1870-1874.A Nancy McNee sighed for her to marry stating that she was nineteen years old.This Nancy lived in Marion Co AL. All of these people lived along the MS-Al state line at this time.
thanks

sue b