WVienna Circle
WA. J. Ayer
WGustav Bergmann
WCafé Central
WRudolf Carnap
WHerbert Feigl
WJosef Frank (architect)
WKurt Gödel
WKurt Grelling
WHans Hahn (mathematician)
WCarl Gustav Hempel
WEino Kaila
WVictor Kraft
WLanguage, Truth, and Logic
WKarl Menger
WRichard von Mises
WOtto Neurath
WFrank Ramsey (mathematician)
WRose Rand
WHans Reichenbach
WKurt Reidemeister
WJosef Schächter
WMoritz Schlick
WOlga Taussky-Todd