in 1963
Alexander Ivanovich Marinesko was a Soviet sailor and, during World War II, the captain of the S-13 submarine, which sank the German ship Wilhelm Gustloff, with recent research showing that over 9,000 died when the ship sank.
in 1968
Upton Beall Sinclair Jr. (September 20, 1878 – November 25, 1968), was an American author who wrote close to 100 books in many genres.