Mary Esther Trueblood
Mary Esther Trueblood Paine ( May 6 , 1872 – November 19 , 1939 ) was an American mathematician and sociologist who taught mathematics at Mount Holyoke College and the University of California , Berkeley . 
<triplet> Mary Esther Trueblood <subj> May 6, 1872 <obj> date of birth