After looking through the Covington County Marriages, http://covington.msghn.org/marriages.html
, I don't think they married in that county. Sometimes couples went to the closest big city to marry and have a little holiday.
You can contact the Mississippi Department of Health and ask if they have all marriages within the state 1930-1940.
She was married three times; 1-Lowery; 2-Blackwell; 3-Taylor which is confusing in itself. She might have taken the Blackwell surname after she and Enoch divorced because of her children. Successful Searching!