Question: What is the date of death of Vivian Burey Marshall's husband?
Sentence (from "Vivian Burey Marshall"): Vivian "Buster" Burey Marshall (February 11, 1911 – February 11, 1955) was an American civil rights activist and was married for 25 years until her death to Thurgood Marshall, lead counsel for the NAACP Legal Defense Fund, who also managed "Brown v. Board of Education" (1954).
Relevant evidence: Yes