Willem Keesom (†03-03-1956)
Foreign Member
Natural Sciences
Johan Raedecker (†12-01-1956)
Foreign Member
Arts
Charley Toorop (†08-11-1955)
Foreign Member
Arts
José Ortega y Gasset (†18-10-1955)
Foreign Member
Humanities
Fernand Léger (†17-08-1955)
Foreign Member
Arts
Jacob Clay (†31-05-1955)
Foreign Member
Natural Sciences
Eduard Meijers (†25-06-1954)
Foreign Member
Humanities
Felix Fritsch (†23-05-1954)
Foreign Member
Natural Sciences
Nikolaas Schneider (†06-03-1953)
Foreign Member
Humanities
Hendrik Kramers (†24-04-1952)
Foreign Member
Natural Sciences