Marine Observer 1924-1926
Marine Observer 1927-1929
Marine Observer 1930-1932
Marine Observer 1933-1935
Marine Observer 1936-1938
Marine Observer 1939-1953
Marine Observer 1954-1962
Marine Observer 1963-1971
Marine Observer 1972-1980
Marine Observer 1981-1989
Marine Observer 1990-1998
Marine Observer 1999-2003
