He was a good friend of Oskar Backlund, and when the latter died in 1916, he succeeded him as director of Pulkovo Observatory.
Oskar Kokoschka | Oskar Schindler | Lee Oskar | Paul Oskar Kristeller | Oskar Sima | Oskar Pfister Award | Oskar Luts | Oskar Linnros | Oskar Kohnstamm | Oskar Fischinger | Oskar Eustis | Bob Backlund | Oskar von Miller | Oskar Vogt | Oskar Sosnowski | Oskar Seidlin | Oskar Schlemmer | Oskar Piotrowski | Oskar Homolka | Oskar Heil | Óskar Halldórsson | Oskar Barnack | Magnus Bäcklund (singer) | Magnus Bäcklund | Viktor Oskar Tilgner | Oskar von Watter | Oskar von Hutier | Oskar von Hindenburg | Oskar Skarsaune | Oskar Schmiedel |