Robert Oskar Julius von Görschen died in 1914.
Robert Julius Trumpler died in 1956.
Julius Robert von Mayer died on March 20, 1878 at the age of 63.
Oskar Lebeck died in 1966.
Oskar Spate died in 2000.
Oskar Awejde died in 1897.
Oskar Jæger died in 1933.
Oskar Böhme died in 1938.
Oskar Langendorff died in 1908.
Oskar Becker died in 1964.
Oskar Heil died in 1994.
Oskar Fehr died in 1959.
Oskar Korschelt died in 1940.