<P> The NAACP 's chief counsel , Thurgood Marshall -- who was later appointed to the U.S. Supreme Court in 1967 -- argued the case before the Supreme Court for the plaintiffs . Assistant attorney general Paul Wilson -- later distinguished emeritus professor of law at the University of Kansas -- conducted the state 's ambivalent defense in his first appellate argument . </P>
this person successfully argued the brown v. board of education case for the naacp
Thurgood Marshall