Ursula M. Leden Krusen, doctor and professor, was born in Breslau, Germany (now Wroc_aw, Poland), on March 13, 1921, the daughter of Peter Paul and Elizabeth (Freter) Leden. She immigrated to the United States in 1938 and became a naturalized citizen in 1944. She received a bachelor's degree from the College of New Rochelle, New York, in 1941, a medical degree from Loyola University in Chicago in 1944, and a master's degree in physical medicine from the University of Minnesota in Rochester in 1949. She married Dr. Edward M. Krusen in 1948; the couple had a son and a daughter.
Before moving to Texas in 1959, Ursula Krusen served as an intern at Henrotin Hospital in Chicago and as a fellow and first assistant in physical medicine at the Mayo Clinic in Rochester, Minnesota. In 1959 she was named chairman of the department of physical medicine and rehabilitation at Southwestern Medical College of the University of Texas in Dallas (now the University of Texas Southwestern Medical Center, Dallas). The following year she became associate professor at Southwestern and in 1971 was promoted to clinical professor of physical medicine and rehabilitation at the school. Through her work in Dallas she became a pioneer in physical medicine in the Southwest. She assisted in establishing the first department of physical medicine at Parkland Hospital and chaired this division from 1959 to 1966. Her work at Parkland included the development of a new program to treat patients with neuromuscular ailments and responsibility for the first medical application of microwave diathermy for patients. Subsequent work by medical researchers in these areas relied heavily on Dr. Krusen's initial efforts. Throughout her career in Texas she also served as a consultant in physical medicine and rehabilitation for the Baylor University Medical Center in Dallas. She wrote several professional publications and held memberships in numerous medical organizations, including the American Academy of Physical Medicine and Rehabilitation, the American Geriatrics Society, the American Medical Association, and the Texas Medical Association. She also chaired the Medical Advisory Group on Multiple Sclerosis of Dallas. Ursula Krusen died in Longmont, Colorado, on July 11, 1973, and was buried in Hillcrest Memorial Park, Dallas. Her survivors included her husband and two children and a brother in Los Angeles.