Joseph Wambaugh and Ernest J. Gaines, have which shared nationality?
Joseph Wambaugh Joseph Aloysius Wambaugh, Jr. (born January 22, 1937) is a bestselling American writer known for his fictional and non-fictional accounts of police work in the United States. Several of his first novels were set in Los Angeles, California, and its surroundings, and featured Los Angeles police officers as protagonists.
Ernest Tidyman Ernest Tidyman (January 1, 1928 – July 14, 1984) was an American author and screenwriter, best known for his novels featuring the African-American detective John Shaft. He also co-wrote the screenplay for the film version of "Shaft" with John D.F. Black in 1971.