Question: What is the date of death of Robert Simpson (Meteorologist)'s wife?
Sentence (from "Robert Simpson (meteorologist)"): Robert Homer Simpson (November 19, 1912 – December 18, 2014) was an American meteorologist, hurricane specialist, first director of the National Hurricane Research Project (NHRP) from 1955–1959, and a former director (1967–1974) of the National Hurricane Center (NHC).
Relevant evidence: No