William Stoner entered the University of Missouri as a freshman in the year 1910, at the age of nineteen. Eight years later, during the height of World War I, he received his Doctor of Philosophy degree and accepted an instructorship at the same University, where he taught until his death in 1956. He did not rise above the rank of assistant professor, and few students remembered him with any sharpness after they had taken his courses. When he died his colleagues made a memorial contribution of a medieval manuscript to the University library. This manuscript may still be found in the Rare Books Collection, bearing the inscription: "Presented to the Library of the University of Missouri, in memory of William Stoner, Department of English. By his colleagues."