Dr. Vaughan was internationally recognized for contributions to the study of the urologic causes of hypertension and renal physiology, most notably in the pathophysiology of renal obstruction, adrenal disease and benign prostatic hyperplasia. Dr. Vaughan was chairman emeritus of the Department of Urology, the James J. Colt Professor of Urology at the Joan and Sanford I. Weill Medical College of Cornell University, and the attending urologist-in-chief at New York-Presbyterian Hospital. He received his medical degree from the University of Virginia in Charlottesville where he completed his residency. He was a trainee under an NIH training grant while in residency and received his masters of science in surgery. Subsequently, he was a special fellow in urology under the Public Health Service at Columbia-Presbyterian in internal medicine and then returned to the University of Virginia where he obtained a research career development award and was funded through a grant from the American Heart Association. Dr. Vaughan was President Emeritus of the American Foundation for Urologic Disease (now known as the Urology Care Foundation), co-chairman of the Prostate Health Council, chairman of the AUA Research Committee, deputy chairman of the National Kidney and Urologic Disease Advisory Board, AUA New York Section President (1987-1988) and American Urological Association President (2001-2002). The AUA honored Dr. Vaughan's career achievements with the 1981 Gold Cystoscope Award, 1992 Distinguished Contribution Award, 2000 Hugh Hampton Young Award and 2011 Ramon Guiteras Award. He also received the Barringer Medal from the American Association of Genitourinary Surgeons, Valentine Medal from the New York Academy of Medicine and the St. Paul's Medal from the British Association of Urological Surgeons.