Retired radiologist Dr. Donald Schenk has given $100,000 to support education, research and clinical care programs at UT Southwestern, his alma mater.

Dr. Schenk, who earned a medical degree from UT Southwestern in 1964, built a successful private radiology practice in Sioux City, Iowa, and made the donation in the form of a charitable gift annuity.

After graduating from medical school, Dr. Schenk completed an internship at Santa Clara Valley Medical Center in San Jose, Calif., before serving three years as an Air Force officer. He later completed a radiology residency at the University of Minnesota. He launched his practice in Sioux City in 1972 and continued there until his retirement in 2010. Dr. Schenk also served as chief of radiology at Mercy Medical Center-Sioux City from 1990 to 2000.

An accomplished bass singer, Dr. Schenk lends his voice to the Abu Bekr Shrine Chanters and the Siouxland Master Chorale. He also serves as president of the International Foundation of the American Historical Society of Germans from Russia. Dr. Schenk and his wife, Mary, live on a 133-acre ranch in Iowa, for which they recently established a land preservation agreement (conservancy easement) through The Nature Conservancy.