Question: What is the date of death of Earl Reece Stadtman's wife?
Sentence (from "Earl Reece Stadtman"): Stadtman received the National Medal of Science from President Jimmy Carter in 1979 "for seminal contributions to understanding of the energy metabolism of anaerobic bacteria and for elucidation of major mechanisms whereby the rates of metabolic processes are finely matched to the requirements of the living cell."
Relevant evidence: No