Question: What is the date of death of Robert Simpson (Meteorologist)'s wife?
Sentence (from "Joanne Simpson"): Joanne Simpson (formerly Joanne Malkus, born Joanne Gerould; March 23, 1923 – March 4, 2010) was the first woman in the United States to receive a Ph.D. in meteorology, which she received in 1949 from the University of Chicago.
Relevant evidence: Yes