an Entity references as follows:
Pyotr Petrovich Shirshov (Russian: Пётр Петрович Ширшов; 25 December [O.S. 12 December] 1905 in Ekaterinoslav – 17 February 1953 in Moscow) was a Soviet oceanographer, hydrobiologist, polar explorer, statesman, academician (1939), the first minister of Ministry of Maritime Fleet of the USSR and Hero of the Soviet Union (1938).