, dean
William Treanor. November 2004 In 1944, as Carter's wartime service ended, he began working at the
NAACP Legal Defense and Educational Fund ("LDF"), and the following year he became an assistant special counsel at the LDF. By 1948 Carter had become a legal assistant to
Thurgood Marshall.
Sweatt v. Painter (1950) Later, he argued on behalf of
Oliver Brown, the plaintiff in one of the five school desegregation cases consolidated into
Brown v. Board of Education upon reaching the
U.S. Supreme Court. Carter advocated bringing in psychological research by
Kenneth and Mamie Clark on the deleterious effects that segregated schools had upon minority students' learning and development, which the unanimous court later relied upon in overturning
Plessy v. Ferguson and deeming public school segregation unconstitutional. He subsequently worked on
Griffin v. County School Board of Prince Edward County, challenging a Virginia school board's attempt to avoid the desegregation required by
Brown. In 1956, after the
separation of LDF from the NAACP, Carter succeeded
Thurgood Marshall as the
general counsel of the
NAACP. Nonetheless, Carter argued and won
NAACP v. Button (1963), in which the Supreme Court struck down a Virginia statute restricting
public interest litigation. In all, while working for the NAACP and LDF, Carter argued 22 cases before the Supreme Court, winning 21 of them. and a co-founder of the
National Conference of Black Lawyers. Carter then worked at
Columbia University's Urban Center, and joined the New York law firm of Poletti, Freidin, Prashker, Feldman & Gartner. ==Judicial career==