Not much information about her. Second term in that slot, ran unopposed.
Oops, here’s a bit more from Wiki.
She was a Republican. And she seems to have been a well-established, upper-class gentlewoman: “Upshaw was a member of the American Bar Association, American Legislative Exchange Council, Colonial Dames, Daughters of the American Revolution, Gulf Coast Chamber of Commerce, Gulfport Yacht Club, Harrison County Bar Association, and the Mississippi Bar Association.”