the event that they are not able to make medical care decisions due to illness or incapacity. Plum treated Richard Nixon before his death in 1994, and credited Nixon's living will with allowing the former President to control his course of treatment with authority over how decisions were made at the end of his life. Death A resident of Manhattan, Plum died at age 86 in a hospice there on June 11, 2010, due to primary progressive aphasia, a form of dementia similar to Alzheimer's disease. He was survived by his second wife, Susan, as well as by a daughter, Carol, and two sons, Michael and Christopher (married to Maureen B. Cavanaugh), from his first marriage to Jean Houston (died in 1999). References 1924 births 2010 deaths American neurologists Weill Cornell Medical College alumni Deaths from primary progressive aphasia Deaths from dementia in New York (state) Dartmouth College alumni People from Atlantic City, New Jersey People from Manhattan Coma Scientists from New York (state) Members of the National Academy of Medicine