Jeanne Holley Koos (April 7, 1928 - March 28, 2018) of Los Altos, California, passed away due to Alzheimer's disease at age 89.

She is survived by her sisters, Patsy Holley Karsten '48 and Geraldine Holley Christiansen '48. She was predeceased by sister, Nancy Holley Hitchcock '44.