Final answer:
The question appears to be conflating two separate historical figures, Lorraine Hansberry and Paul Robeson, as there is no direct historical event where Lorraine represented Robeson in 1951. Paul Robeson was an accomplished athlete, actor, singer, and civil rights activist facing government oppression during that time period.
Step-by-step explanation:
Lorraine Hansberry did not represent Paul Robeson; this question seems to have combined two individuals into one event. Paul Robeson was a multisport star athlete and talented student at Rutgers University who later graduated from law school at Northwestern, played in the NFL, and gained fame in Shakespearean drama and singing. The year 1951 does not specifically align with an event where 'Lorraine represented Robeson.'
However, in 1951, Robeson was very active in speaking about race relations and was facing scrutiny for his beliefs and activism, particularly due to his outspoken nature and his association with the Communist Party. For more context, in 1950, during the McCarthy era, Robeson had his passport revoked by the U.S. government to prevent him from leaving the country, due to fears that his speeches abroad could be used by Soviet agents to criticize American democracy and its race relations.