No, the C. D. does not stand for “certificate of deposit,” but for a dear friend of mine. Working, as I have, for such a long period of time with other mathematicians, I have acquired many mathematical friends. I could devote quite some space to telling about them. Prominent in any such account would be Clayton Dodge, now a University of Maine Emeritus Professor of Mathematics.

I first met Clayton shortly after I joined the mathematics staff at the University of Maine back in 1954. At that time Clayton was a sharp, keenly interested, and outstanding graduate mathematics student. I had the great pleasure of having him in several of my graduate classes, and in time he wrote his Master's Thesis with me and served as a very able assistant in some of my courses. When the University conducted some National Science Foundation Summer Institutes for Teachers of Mathematics, Clayton did yeoman work assisting the enrollees at the afternoon problem sessions. When I revised my book on The Foundations and Fundamental Concepts of Mathematics, I greatly benefited from Clayton's excellent suggestions and wise counsel. Meanwhile he was working his way up the teaching ladder at the University, constantly winning the deep admiration of his students. When my work as a Problem Editor of The American Mathematical Monthly grew beyond the bounds of a single person's time, I was able to secure Clayton's assistance.