Their sister Meta Vidmar studied with the famous Mary Wigman in Dresden and upon returning to Ljubljana in 1930 established the first school of modern dance in Slovenia.
Josip Broz Tito | Aurelio Vidmar | Peter Vidmar | Milan Vidmar | Josip Kuže | Josip Jurčič | Josip Vilfan | Josip Murn | Josip Štadler | Josip Landeka | Josip Egartner | Tony Vidmar | Josip Zemko | Josip Vranković | Josip Vidmar | Josip Vandot | Josip Stadler | Josip Šimunić | Josip Perković | Josip Mikulić | Josip Manolić | Josip Iličić | John Vidmar |
As a fierce opponent of Yugoslav centralism and nationalism, Kozak was among the founders of the left liberal journal Sodobnost, which he edited together with Josip Vidmar, Fran Albreht and Stanko Leben.