On the occasion of the 50th anniversary of his landmark thesis on the successive over relaxation (SOR) theory, a symposium honoring David M. Young was held at the 2000 SIAM Annual Meeting, Rio Grande, Puerto Rico. Students and colleagues gathered together to honor him for his contributions to scientific computing and congratulate him on his recent retirement from The University of Texas at Austin. Young, who earned a Ph.D. in Mathematics from Harvard, held the positions of Ashbel Smith Professor of Mathematics and Professor of Computer Sciences. The speakers were Kang C. Jea (Fu Je University, Taiwan), Owe Axelsson (University of Nijmegen, The Netherlands), Linda J. Hayes (UT-Austin), and Anne C. Elster (Acenor, Austin). David Young's thesis (http://www-sccm.standford.edu/pub/sccm/david young thesis.ps.gz ) was one of the monumental works of modern numerical analysis. Professor Gene Golub, Stanford University, said, "Thanks, David, it is a remarkable contribution and has had enormous impact for the computational and engineering communities" (NA Digest, Volume 99, Issue 17). David R. Kincaid (UT-Austin) organized the symposium.