Ruth Stokes
... that when Ruth Stokes defended her dissertation on the theory of linear programming in 1931, she became the first person to earn a doctorate in mathematics from Duke University?
... that when <b id="mwBkw"><a href="./Ruth_Stokes" id="mwBk0" rel="mw:WikiLink" title="Ruth Stokes">Ruth Stokes</a></b> defended her dissertation on the theory of <a href="./Linear_programming" id="mwBk4" rel="mw:WikiLink" title="Linear programming">linear programming</a> in 1931, she became the first person to earn a doctorate in mathematics from <a href="./Duke_University" id="mwBk8" rel="mw:WikiLink" title="Duke University">Duke University</a>?