2018 Dr. Betty Mayfield, Women and Mathematics in the Time of Euler. 2017 Dr. William Martin, You Do The Math! 2016 Dr. Eugene Fiorini, Beyond John Conway's Life. 2015 Dr. Ivars Peterson, Pancake Sorting, Prefix Reversals, and DNA Rearrangements. 2014 Dr. Robert Jantzen, Spaghetti Curves: The Hidden Math of a Polar Coordinate Integration Problem. 2013 Dr. Tommy Wright, Equal Proportions for Congressional Apportionment. 2012 Dr. Katherine Socha, Sea Battles, Benjamin Franklin's Oil Lamp, and Jelly Bellies. 2011 Dr. Tony Rothman, Princeton University. 2010 Robert Ghrist, Sensor Sensibility: The Mathematics of Sensor Networks. 2009 Peter Sarnak, Diophantine geometry of Apollonian packings. 2008 Helen Grundman, Niven numbers and n-Niven numbers. 2007 Rachel Hall, Asymmetric Rhythms and Tiling Canons 2006 Stephanie Frank Singer, Counting the Vote: How Mathematicians Can Help Stop the Destruction of American Democracy 2005 Pamela Gorkin, A Mathematician with Principles and Problems: Dirichlet. 2004 Chris Rorres, If Archimedes Had A Computer. 2003 Larry Joel Goldstein, The Mathematics of Blood Flow. 2002 John F. Dillon, National Security Agency, Pseudorandom Sequences with Ideal Autocorrelation. 2001 Jerry Kazdan, The University of Pennsylvania, Using Symmetry. 2000 Margaret H. Wright, Bell Labs/Lucent Technologies, The Mathematics of Optimization. 1999 Michael C. Reed, Duke University, Mathematics of the Auditory System. 1998 Judy Kennedy, University of Delaware, Horseshoes and How One Thing Leads to Another. 1997 Jeffrey C. Lagarias, AT\& T Bell Labs, Keller's Conjecture on Cube Tilings. 1996 Jerry P. King, Lehigh University, The Art of Mathematics. 1995 Leon Ehrenpreis, Temple University, Identities: What are they? How do you prove them? Who cares anyway? 1994 J. Stuart Hunter, Princeton University, Statistics and the Scientific Method 1993 Herbert Wilf, University of Pennsylvania, How Linear Algebra Helps Us To Count Things. 1992 David Zitarelli, Temple University, Joseph Liouville: Modern Mathematician. 1991 Rhonda Hughes, Bryn Mawr College, From Fourier Series to Wavelets: Trends in Harmonic Analysis. 1990 Donald Newman, Temple University, Those Billion Slices of Pi. 1989 Amos Altshuler, Ben-Gurion University (Israel), An Impossible Concert for a Triangle and a Cube.